References

Amirabdollahian, F. (2004). An investigation of robot-mediated therapies and therapy effects on the recovery of upper limb post-stroke. PhD (British Library R9260), Department of Cybernetics, University of Reading.

Anderson, A. H., Bard, E., Sotillo, C., Doherty-Sneddon, G., & Newlands, A. (1997). Limited visual control of the intelligibility of speech in face-to-face dialogue. Perception and Psychophysics, 59(4), pp. 580-592.

Anderson, A. H., Smallwood, L., MacDonald, R., Mullin, J., & Fleming, A. (2000). Video data and video links in mediated communication: what do users value? International Journal of Human-Computer Studies, 52(1), pp. 165-187.

Anderson, J. R., Corbett, A. T., Koedinger, K. R., & Pelletier, R. (1995). Cognitive tutors: Lessons learned. The Journal of Learning Sciences, 4, pp. 167-207.

Anthes, C. (2002). Event and latency measurement in collaborative Virtual worlds: The University of Reading.

Antunes, P., Guimarães, N., Segovia, J., & Cardenosa, J. (1995). Beyond Formal Processes: Augmenting Workflow with Group Interaction Techniques. In Proceedings of COCS '95: Proceedings of Conference on Organizational Computing Systems, New York, NY, USA, pp. 1-9.

Argyle, M. (1988). Bodily Communication: Routledge,an imprint of Taylor & Francis Books Ltd.

Argyle, M., & Cook, M. (1976). Gaze and Mutual Gaze: Cambridge University Press.

Argyle, M., & Graham, J. A. (1976). The Central Europe Experiment: Looking at Persons and Looking at Objects. Environmental Psychology and Nonverbal Behavior, 1(1), pp. 6-16.

Arthur, K. (1996). Effects of field of view on task performance with head-mounted displays. In Proceedings of Human Factors in Computing Systems, Vancouver, Canada, pp. 29-30.

Axelsson, A.-S., Abelin, A., Heldal, I., Nilsson, A., Schroeder, R., & Wideström, J. (1999). Collaboration and Communication in Multi-User Virtual Environments: A Comparison of Desktop and Immersive Virtual Reality Systems for Molecular Visualization. In Proceedings of Sixth UKVRSIG Conference, Salford University, pp. 107-117.

Axelsson, A.-S., Abelin, Å., Heldal, I., Schroeder, R., & Wideström, J. (2001). Cubes in the cube: a comparison of a puzzle-solving task in a virtual and a real environment. Cyberpsychology and Behavior, 4(2), pp. 279-286.

Bailenson, J. N., Aharoni  E. Beall, A. C., Guadagno, R. E., Dimov, A., & Blascovich, J. (2004). Comparing Behavioral and Self-Report Measures of Embodied Agents Social Presence in Immersive Virtual Environments. In Proceedings of the 7th Annual International Workshop on PRESENCE, Valencia, Spain.

Bailenson, J. N., Blascovich, J., Beall, A. C., & Loomis, J. M. (2001). Equilibrium Theory Revisited: Mutual Gaze and Personal Space in Virtual Environments. Presence: Teleoperators and Virtual Environments, 10(6), pp. 583-598.

Bailenson, J. N., Blascovich, J., Beall, A. C., & Loomis, J. M. (2003). Interpersonal Distance in Immersive Virtual Environments. Personality and Social Psychology Bulletin, 29(7), pp. 819-833.

Baker, H. H., Bhatti, N., Tanguay, D., Sobel, I., Gelb, D., Goss, M. E., MacCormick, J., Yuasa, K., Culbertson, B. W., & Malzbender, T. (2003). Computation and Performance Issues in Coliseum: An Immersive Videoconferencing System. In Proceedings of MULTIMEDIA '03: Proceedings of the eleventh ACM international conference on Multimedia, New York, NY , USA, pp. 470-479.

Baños, R. M., Botella, C., Alcañiz, M., Liaño, V., Guerrero, B., & Rey, B. (2004). Immersion and Emotion: Their Impact on the Sense of Presence. CyberPsychology and Behavior, 7(6), pp. 734-741.

Barakony, I., Frieb, W., & Schmalstieg, D. (2003). Augmented Reality Videoconferencing for Collaborative Work. In Proceedings of Hungarian Conference on Computer Graphics and Geomtery, Budapest, Hungary.

Barna, L. M. (1985). Stumbling Blocks in Intercultural Communication. In Intercultural Communication: A Reader (pp. 330-338): Wadsworth Publishing.

Barré, R., Pastoor, S., Conomis, C., Przewozny, D., Renault, S., Stachel, O., Duckstein, B., & Schenke, K. (2005). Natural interaction in a desktop mixed reality environment. In Proceedings of Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2005), Montreux (CH).

Basdogan, C., Ho, C.-H., Srinivasan, M. A., & Slater, M. (2000). An experimental study on the role of touch in shared virtual environments. ACM Transactions on Computer-Human Interaction (ToCHI), 7(4), pp. 443-460.

Becker, B., & Mark, G. (1998). Social Conventions in Collaborative Virtual Environments. In Proceedings of Collaborative Virtual Environments CVE’98, Manchester, pp. 47-55.

Bejczy, A. K., & Kim, W. S. (1990). Predictive displays and shared compliance control for time-delayedtelemanipulation. In Proceedings of Intelligent Robots and Systems '90. 'Towards a New Frontier of Applications', pp. 407-412.

Benford, S., Bowers, J., Fahlén, L. E., Greenhalgh, C., & Snowdon, D. (1995). User Embodiment in Collaborative Virtual Environments. In Proceedings of CHI'95: Proceedings of the ACM Conference on Human Factors in Computing Systems, pp. 242-249.

Benford, S., & Fahlén, L. E. (1993). A Spatial Model of Interaction in Large Virtual Environments. In Proceedings of 3rd European Conference on Computer Supported Cooperative Working, Millan, Italy.

Benford, S., Greenhalgh, C., Reynard, G., Brown, C., & Koleva, B. (1998). Understanding and Constructing Shared Spaces with Mixed-reality Boundaries. ACM Transactions on Computer-Human Interaction (ToCHI), 5(3), pp. 185-223.

Benford, S., Snowdon, D., Colebourne, A., O'Brien, J., & Rodden, T. (1997). Informing the Design of Collaborative Virtual Environments. In Proceedings of GROUP'97: International Conference on Supporting Group Work, pp. 71-80.

Bente, G., & Kraemer, N. C. (2002). Virtual gestures: analyzing social presence effects of computer-mediated and computer-generated nonverbal behaviour. In Proceedings of Fifth Annual International Workshop PRESENCE 2002, Porto, pp. 233-244.

Berlage, T., & Sohlenkamp, M. (1999). Visualizing Common Artefacts to Support Awareness in Computer-Mediated Cooperation. Computer Supported Cooperative Work, 8(3), pp. 207-238.

Bierbaum, A. (2001). VR Juggler: A virtual Platform For Virtual Reality Application Development. In Proceedings of IEEE VR 2001, Yokohama.

Billinghurst, M., & Kato, H. (2002). Collaborative augmented reality. Communications of the ACM, 45(7), pp. 64-70.

Biocca, F. (1997). The Cyborg's Dilemma: Progressive Embodiment in Virtual Environments. Journal of Computer-Mediated Communication (JCMC), 3(2), pp. 12-26.

Bly, S. A. (1988). A use of drawing surfaces in different collaborative settings. In Proceedings of CSCW '88: Proceedings of the 1988 ACM conference on Computer-supported cooperative work, New York, NY, USA, pp. 250-256.

Bos, N., Olson, J., Gergle, D., Olson, G., & Wright, Z. (2002). Effects of four computer-mediated communications channels on trust development. In Proceedings of CHI '02: Proceedings of the SIGCHI conference on Human factors in computing systems, New York, NY, USA, pp. 135-140.

Bos, N., Shami, S. N., Olson, J. S., Cheshin, A., & Nan, N. (2004). In-group/out-group effects in distributed teams: an experimental simulation. In Proceedings of CSCW '04: Proceedings of the 2004 ACM conference on Computer supported cooperative work, New York, NY, USA, pp. 429-436.

Bouguila, L., Ishii, M., & Sato, M. (2002). Realizing a new step-in-place locomotion interface for virtual environment with large display system. In Proceedings of EGVE '02: Proceedings of the workshop on Virtual environments 2002, Aire-la-Ville, Switzerland, Switzerland, pp. 197-207.

Bowers, J., O'Brien, J., & Pyckock, J. (1996). Talk and embodiment in collaborative virtual environments. In Proceedings of CHI'96, New York, pp. 58-65.

Bowman, D., Datey, A., Ryu, Y., Farooq, U., & Vasnaik, O. (2002a). Empirical Comparison of Human Behavior and Performance with Different Display Devices for Virtual Environments. In Proceedings of Human Factors and Ergonomics Society Annual Meeting, pp. 2134-2138.

Bowman, D. A., Gabbard, J. L., & Hix, D. (2002b). A Survey of Usability Evaluation in Virtual Environments: Classifcation and Comparison of Methods. Presence: Teleoperators and Virtual Environments, 11(4), pp. 404-424.

Bowman, D. A., Johnson, D. B., & Hodges, L. F. (2001). Testbed Evaluation of Virtual Environment Interaction Techniques. Presence: Teleoperators and Virtual Environments, 10(1), pp. 75-95.

Boyer, D. G., Handel, M. J., & Herbsleb, J. (1998). Virtual Community Presence Awareness. SIGGROUP Bulletin, 19(3), pp. 11-14.

Bradner, E., & Mark, G. (2002). Why distance matters: effects on cooperation, persuasion and deception. In Proceedings of CSCW '02: Proceedings of the 2002 ACM conference on Computer supported cooperative work, New York, NY, USA, pp. 226-235.

Brodlie, K., Duce, D. A., Gallop, J. R., Walton, J. P. R. B., & Wood, J. (2004). Distributed and Collaborative Visualization. Computer Graphics Forum, 23(2), pp. 223-251.

Brogni, A., Slater, M., & Steed, A. (2003a). More breaks less presence. In Proceedings.

Brogni, A., Slater, M., & Steed, A. (2003b). More Breaks Less Presence. In Proceedings of Presence 2003, The 6th Annual International Workshop on Presence, Aalborg, Danmark.

Broll, W. (1995). Interacting in Distributed Collaborative Virtual Environments. In Proceedings of VRAIS '95: Proceedings of the Virtual Reality Annual International Symposium, Washington, DC, USA, pp. 148-155.

Broll, W. (1997). Populating the Internet: Supporting Multiple Users and Shared Applications with VRML. In Proceedings of Proceedings of the VRML97 Symposium, Monterey, Ca., pp. 87-94.

Brooks, F. P. (1999). Whats Real About Virtual Reality? IEEE Computer Graphics and Applications, 19(6), pp. 16-27.

Burdea, G., Zhuang, J., Roskos, E., Silver, D., & Langrana, N. A. (1992). A Portable Dextrous Master with Force Feedback. Presence: Teleoperators and Virtual Environments, 1(1), pp. 18-28.

Burdea, G. C. (2000). Haptic Feedback for Virtual Reality. special issue on Virtual Prototyping, International Journal of Design and Innovation Research, 2(1), pp. 17-29.

Burgoon, M., Hunsaker, F. G., & Dawson, E. J. (1994). Human Communication. London: SAGE Publications.

Buttolo, P., Oboe, R., & Hannaford, B. (1997). Architectures for shared haptic virtual environments. Computers and Graphics, 21(4), pp. 421-429.

Buxton, W. A. S. (1992). Telepresence: Integrating Shared Task and Person Spaces. In Proceedings of Proceedings of the Conference on Graphics Interface '92, San Francisco, CA, USA, pp. 123-129.

Byrne, C. M. (1996). Water on Tap: The Use of Virtual Reality as an Educational Tool. University of Washington.

Bystrom, K.-E., & Barfield, W. (1999). Collaborative Task Performance for Learning Using a Virtual Environment. Presence: Teleoperators and Virtual Environments, 8(4), pp. 435-448.

Carlsson, C., & Hagsand, O. (1993). DIVE - A platform for multi-user virtual environments. Computers and Graphics, 17(6), pp. 663-669.

Casanueva, J. (2001). Presence and Co-Presence in Collaborative Virtual Environments. MSc, University of Cape Town, Cape Town, South Africa.

Casanueva, J., & Blake, E. (2000). The Effects of Group Collaboration on Presence in a Collaborative Virtual Environment. In Proceedings of Sixth Eurographics Workshop on Virtual Environments, EGVE'00, pp. 85-94.

Childers, L., Disz, T., Olson, R., Papka, M. E., Stevens, R., & Udeshi, T. (2000). Access Grid: Immersive Group-to-Group Collaborative Visualization. In Proceedings of Proceedings of the Fourth International Immersive Projection Technology Workshop.

Choi, H. R., Choi, B. H., & Ryew, S. M. (1997). Haptic Display in the Virtual Collaborative Workspace Shared by Multiple Users. In Proceedings of 6th IEEE Int. Workshop on Robot and Human Communication, pp. 478-483.

Clark, H. H., & Brennan, S. E. (1991). Grounding in communication. In Perspectives on socially shared cognition: WashingtonDC, APA Press.

Coomans, M. K. D., & Timmermans, H. J. P. (1998). A VR-User Interface for Design by Features. In Proceedings of the 4th Conference on Design and Decision Support Systems in Architecture and Urban Planning, DDSS'98, Maastricht, The Netherlands.

Cooper, R. (1974). The control of eye fixation by the meaning of spoken language. Cognitive Psychology, 6(1), pp. 84-107.

Crabtree, A. (2003). Designing Collaborative Systems : A Practical Guide to Ethnography: Springer.

Cruz-Neira, C., Sandin, D., DeFanti, T., Kenyon, R., & Hart, J. (1992). The CAVE: Audio Visual Experience Automatic Virtual Environment. Communications of the ACM, 35(6), pp. 65-72.

Darken, R. P., Bernatovich, D., Lawson, J. P., & Peterson, B. (1999). Quantitative Measures of Presence in Virtual Environments: The Roles of Attention and Spatial Comprehension. CyberPsychology and Behavior, 2(4), pp. 337-347.

Darn, S. (2005). Aspects of Nonverbal Communication. The Internet TESL Journal, XI(2).

Davis, T. R. V. (1984). The Influence of the Physical Environment in Offices. Academy of Management Review, 9(2), pp. 271-283.

Dillenbourg, P., Baker, M., Blaye, A., & O’Malley, C. (1995). The evolution of research on collaborative learning. In Learning in Humans and Machine: Towards an interdisciplinary learning science (pp. 189-211): Oxford: Elsevier.

Draper, J. V., Kaber, D. B., & Usher, J. M. (1998). Telepresence. Human Factors, 40(3), pp. 354-375.

Durlach, N., & Slater, M. (2000). Presence in Shared Virtual Environments and Virtual Togetherness. Presence: Teleoperators and Virtual Environments, 9(2), pp. 214-217.

Ekman, P., & Friesan, W. (1969). The repertoire of nonverbal behavior: Categories,. Semiotica, 1, pp. 49-98.

Ellis, C. A., Gibbs, S. J., & Rein, G. (1991). Groupware: Some Issues and Experiences. Communications of the ACM, 34(1), pp. 39-58.

Ellis, S. R. (1996). Virtual Environments and Environmental Instruments. In K. Carr & R. England (Eds.), Simulated and Virtual Realities - Elements of Perception (pp. 11-51): London: Taylor and Francis.

Endsley, M. R. (1995). Toward  a  theory  of  situation  awareness  in  dynamic systems. Human Factors, 37(1), pp. 32-64.

Flach, J. M. (1998). The Reality of Experience: Gibson's Way. Presence: Teleoperators and Virtual Environments, 7(1), pp. 90-95.

Floyd, S., Jacobson, V., McCanne, S., Liu, C.-G., & Zhang, L. (1995). A Reliable Multicast Framework for Light-weight Sessions and Application Level Framing. In Proceedings of SIGCOMM'95: Applications, Technologies, Architectures,and Protocols for Computer Communication, Cambridge, Massachusetts, pp. 342-356.

Forgas, J. P. (1985). Interpersonal Behaviour: Psychology of Social Interaction: Elsevier.

Fraser, M., Benford, S., Hindmarsh, J., & Heath, C. (1999). Supporting Awareness and Interaction through Collaborative Virtual Interfaces. In Proceedings of UIST'99: 12th Annual ACM Symposium on User Interface Software and Technology, New York, NY, USA, pp. 27-36.

Frécon, E. (2004). DIVE: communication architecture and programming model. IEEE Communications Magazine, Special Issue on Networked Virtual Environments, 42(4), pp. 34-40.

Frécon, E., Greenhalgh, C., & Stenius, M. (1999). The DiveBone - An Application-Level Network Architecture for Internet-based CVEs. In Proceedings of VRST'99: Symposium on Virtual Reality Software and Technology 1999, University College London, UK, pp. 58-65.

Frécon, E., Smith, G., Steed, A., Stenius, M. a., & Ståahl, O. (2001). An Overview of the COVEN Platform. Presence: Teleoperators and Virtual Environments, 10(1), pp. 109-127.

Fussell, S. R., Kraut, R. E., & Siegel, J. (2000). Coordination of Communication: Effects of Shared Visual Context on Collaborative Work. In Proceedings of CSCW '00: Proceedings of the 2000 ACM Conference on Computer Supported Cooperative Work, New York, NY, USA, pp. 21-30.

Gibson, J. J. (1979). The ecological approach to visual perception. Boston: Houghton Mifflin Co.

Goleman, D. (1996). Emotional Intelligence: Why It Can Matter More Than IQ: Bloomsbury.

Gonzalez, D. A. (2005). AGJuggler: An architecture for virtual reality within a collaboration environment. Purdue University, West Lafayette, IN 47907, USA.

Goodwin, C. (1981). Conversational organization: Interaction between speakers and hearers: New York: Academic.

Greenhalgh, C. M. (1999). Analysing Awareness Management in Distributed Virtual Environments. In Proceedings of 2nd Annual Workshop on System Aspects of Sharing a Virtual Reality, part of CVE '98, Manchester, UK.

Greenhalgh, C. M., & Benford, S. D. (1995). MASSIVE: A Virtual Reality System for Tele-conferencing. ACM Transactions on Computer-Human Interaction (ToCHI), 2(3), pp. 239-261.

Greenhalgh, C. M., Bullock, A., Fréon, E., Lloyd, D., & Steed, A. (2001). Making Networked Virtual Environments Work. Presence: Teleoperators and Virtual Environments, 10(2), pp. 142-159.

Hall, E. T. (1963). A System for the notation of proxemic behavior. American Anthropologist, 65(5), pp. 1003.

Hall, E. T. (1968). Proxemics. Current Anthropology, 9(2), pp. 83.

Hardman, V., Sasse, A., Handley, M., & Watson, A. (1995). Reliable Audio for Use over the Internet. In Proceedings of INET'95, Honolulu, Hawaii.

Heldal, I., Steed, A., Spante, M., Schroeder, R., Bengtsson, S., & Partanan, M. (2005). Successes and Failures in Co-Present Situations. Presence: Teleoperators and Virtual Environments, 14(5).

Hindmarsh, J., Fraser, M., Heath, C., & Benford, S. (2001). Collaborative Virtual Environments. In Virtually Missing the Point: Configuring CVEs for Object-Focused Interaction (pp. 115-139). London, UK: Springer Verlag.

Hindmarsh, J., Fraser, M., Heath, C., Benford, S., & Greenhalgh, C. (2000). Object-Focused Interaction in Collaborative Virtual Environments. ACM Transactions on Computer-Human Interaction (ToCHI), 7(4), pp. 477-509.

Hix, D., & Hartson, R. H. (1993). Developing User Interfaces : Ensuring Usability Through Product and Process: John Wiley and Sons.

Hollan, J., & Stornetta, S. (1992). Beyond being There. In Proceedings of CHI '92: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, New York, NY, USA, pp. 119-125.

Holmes, J. G., & Rempel, J. K. (1989). Trust in close relationships. Review of personality and social psychology: Close relationships, 10, pp. 187-219.

Huettig, F., & Altmann, G. T. (2005). Word meaning and the control of eye fixation: semantic competitor effects and the visual world paradigm. Cognition, 96(1), pp. B23-B32.

Hurmuzlu, Y., Ephanov, A., & Stoianovici, D. (1998). Effect of a Pneumatically Driven Haptic Interface on the Perceptional Capabilities of Human Operators. Presence - Teleoperators and Virtual Environments, 7(3), pp. 290-307.

Hutchby, I. (2001). Conversation and Technology: Cambridge University Press.

Hutchby, I., & Wooffitt, R. (1998). Conversation analysis: Cambridge University Press.

IJsselsteijn, W. A., Freeman, J., & Ridder, H. (2001). Presence: Where Are We? Cyberpsychology and Behavior, 4(2), pp. 179-182.

Johnson, A., Leigh, J., DeFanti, T., Brown, M., & Sandin, D. (1998). CAVERN: the CAVE Research Network. In Proceedings of Proceedings of 1st International Symposium on Multimedia Virtual Laboratory, Tokyo, Japan, pp. 15-27.

Joiner, J. T. E. (1994). Contagious depression: existence, specificity to depressed symptoms, and the role of reassurance seeking. Journal of Personality and Social Psychology, 67(2), pp. 287-296.

Jorgensen, C., Ogden, J., Willis, K., Blessing, M., Caudell, K. A., Patrick, G., & Caudell, T. P. (1997). Locomotion in a virtual environment: Performance measures and physiological responses. In Proceedings of Human Factors and Ergonomics Society 41st Annual Meeting, Albuquerque, New Mexico, pp. 1148-1151.

Jung, J. Y., Adelstein, B. D., & Ellis, S. R. (2000). Discriminability of prediction artifacts in a time delayed virtual environment. In Proceedings of the 44th Annual Human Factors and Ergonomics Society Meeting, pp. 499-502.

Kalawsky, R. S. (2000). The Validity of Presence as a Reliable Human Performance Metric in Immersive Environments. In Proceedings of 3rd International Workshop on Presence, Delft, Netherlands, pp. 1-16.

Kauff, P., & O.Schreer. (2002). Virtual Team User Environments - A Step From Tele-Cubicles Towards Distributed Tele-Colaboration in Mediated Workspaces. In Proceedings of Int. IEEE Conf. on Multimedia and Expo (ICME 2002), Lausanne, Switzerland.

Kendon, A. (1990). Conducting Interaction : Patterns of Behavior in Focused Encounters (Studies in Interactional Sociolinguistics): Cambridge University Press.

Kim, J., Kim, H., Tay, B. K., Muniyandi, M., Srinivasan, M. A., Jordan, J., Mortensen, J., Oliveira, M., & Slater, M. (2004). Transatlantic touch: a study of haptic collaboration over long distance. Presence: Teleoperators and Virtual Environments, 13(3), pp. 328.

Kjeldskov, J. (2001). Interaction: Full and partial Immersive Virtual Reality Displays. In Proceedings of IRIS24, University of Bergen, Bergen, pp. 587-600.

Knapp, M. L. (1978). Nonverbal Communication in Human Interaction: Holt, Rinehart and Winston.

Kraut, R. E., Fussell, S. R., & Siegel, J. (2003). Visual Information as a Conversational Resource in Collaborative Physical Tasks. Human-Computer Interaction, 18(1/2), pp. 13-49.

Lanier, J. (2001). Virtually There. Scientific American, 284(4), pp. 66-75.

Lapointe, J.-F., & Vinson, N. G. (2002). Effects of Joystick Mapping and Field-of-View on Human Performance in Virtual Walkthroughs. In Proceedings of the 1st International Symposium on 3D Data Processing Visualization and Transmission, Padova, Italy, pp. 490-493.

Leigh, J., Johnson, A., & DeFanti, T. (1999). A Review of Tele-Immersive Applications in the CAVE Research Network. In Proceedings of IEEE VR `99, Houston, TX, pp. 180-187.

Lin, J. J.-W., Duh, H. B. L., Abi-Rached, H., Parker, D. E., & Iii, T. F. A. (2002). Effects of Field of View on Presence, Enjoyment, Memory, and Simulator Sickness in a Virtual Environment. In Proceedings of VR '02: Proceedings of the IEEE Virtual Reality Conference 2002, Washington, DC, USA, pp. 164.

Linebarger, J. M., Janneck, C. D., & Kessler, D. G. (2003). Shared Simple Virtual Environment: An Object-Oriented Framework for Highly Interactive Group Collaboration. In Proceedings of DS-RT '03: Proceedings of the Seventh IEEE International Symposium on Distributed Simulation and Real-Time Applications, Washington, DC, USA, pp. 170-180.

Linebarger, J. M., & Kessler, D. (2004). Concurrency Control Mechanisms for Closely Coupled Collaboration in Multithreaded Peer-to-Peer Virtual Environments. Presence: Teleoperators and Virtual Environments, 13(3), pp. 296-314.

Lok, B., Naik, S., Whitton, M., & Frederick P. Brooks, J. (2003). Effects of Handling Real Objects and Self-Avatar Fidelity on Cognitive Task Performance and Sense of Presence in Virtual Environments. Presence: Teleoperators and Virtual Environments, 12(6), pp. 615-628.

Loureiro, R., Amirabdollahian, F., Topping, M., Driessen, B., & Harwin, W. (2005). Upper Limb Mediated Stroke Therapy - GENTLE/s Approach. In Special Issue on Rehabilitation Robotics, Journal of Autonomous Robots, 15(1), pp. 35-51.

Macedonia, M. R., Zyda, M. J., Pratt, D. R., Barham, P. T., & Zeswitz, S. (1994). NPSNET: A Network Software Architecture for Large-Scale Virtual Environment. Presence: Teleoperators and Virtual Environments, 3(4), pp. 265-287.

Manek, D. (2004). Effects of Visual Displays on 3D Interaction in Virtual Environments. Virginia Polytechnic Institute and State University.

Marcelino, L., Murray, N., & Fernando, T. (2003). A Constraint Manager to Support Virtual Maintainability. Computers and Graphics, 27, pp. 19-26.

Margery, D., Arnaldi, B., & Plouzeau, N. (1999). A General Framework for Cooperative Manipulation in Virtual Environments. Virtual Environments '99, pp. 169-178.

Mark, G., Grudin, J., & Poltrock, S. E. (1999). Meeting at the Desktop: An Empirical Study of Virtually Collocated Teams. In Proceedings of ECSCW'99: Sixth European Conference on Computer Supported Cooperateive Work.

Markus, L. M., & Connolly, T. (1990). Why CSCW Applications fail: Problems in the Adoption of Interdependent Work Tools. In Proceedings of CSCW '90: Proceedings of the 1990 ACM Conference on Computer Supported Cooperative Work, New York, NY, USA, pp. 371-380.

Massie, T. H. (1993). Initial Haptic Explorations with the Phantom: Virtual Touch Through Point Interaction. Massachusetts Institute of Technology.

Meehan, M., Insko, B., Whitton, M., & Brooks, F. P. (2001). Physiological Measures of Presence in Virtual Environments. In Proceedings of 4rd International Workshop on Presence, Philadelphia, USA.

Meehan, M., Razzaque, S., Whitton, M. C., & Brooks, J. F. P. (2003). Effect of Latency on Presence in Stressful Virtual Environments. In Proceedings of IEEE Virtual Reality 2003, Los Angeles, CA, pp. 141-148.

Milgram, P., & Fumio, K. (1994). A Taxonomy of Mixed Reality Displays. IEICE Transactions on Information Systems, E77-D(12), pp. 1321-1329.

Mine, M. R., Frederick P. Brooks, J., & Sequin, C. H. (1997). Moving objects in space: exploiting proprioception in virtual-environment interaction. In Proceedings of SIGGRAPH '97: Proceedings of the 24th annual conference on Computer graphics and interactive techniques, New York, NY, USA, pp. 19-26.

Molet, T., Aubel, A., Capin, T., Carion, S. e., Lee, E., Magnenat-Thalmann, N., Noser, H., Pandzic, I., Sannier, G. e., & Thalmann, D. (1999). Anyone for Tennis? Presence: Teleoperators and Virtual Environments, 8(2), pp. 140-156.

Mortensen, J., Vinayagamoorthy, V., Slater, M., Steed, A., Lok, B., & Whitton, M. C. (2002). Collaboration in tele-immersive environments. In Proceedings of Eighth Eurographics workshop on Virtual environments, Barcelona, Spain, pp. 93-101.

Nichols, S., Haldane, C., & Wilson, J. R. (2000). Measurement of presence and its consequences in virtual environments. International Journal of Human Computer Studies, 52(3), pp. 471.

Nilsson, A., Heldel, I., Axelsson, A.-S., & Schroeder, R. (2002). The long-term uses of shared virtual environments: an exploratory study. In The social life of avatars: presence and interaction in shared virtual environments (pp. 112-126). New York, NY, USA: Springer-Verlag New York, Inc.

O'Conaill, B., Whittaker, S., & Wilbur, S. (1993). Conversations Over Video Conferences: An Evaluation of the Spoken Aspects of Video-Mediated Communication. Human-Computer Interaction, 8(4), pp. 389-428.

Ohba, K., Kawabata, S., Chong, N. Y., Komoriya, K., Matsumaru, T., Matsuhira, N., Takase, K., & Tanie, K. (1999). Remote Collaboration through Time Delay in Multiple Teleoperation. In Proceedings of IEEE International Conference on Intelligent Robots and Systems(IROS99), pp. 1866-1871.

Olson, J. S., Olson, G. M., & Meader, D. K. (1995). What mix of video and audio is useful for remote real-time work? In Proceedings of CHI ’95, pp. 362-368.

Osawa, N. (2006). Automatic adjustments for efficient and precise positioning and release of virtual objects. In Proceedings of ACM international Conference on Virtual Reality Continuum and its Applications, VRCIA, HongKong, pp. 121-128.

Painter, S. L. (1991). Personal Space and Privacy: Implications for Correctional Institutions. Institutional Design and Correctional Environments, 3(2), pp. 1-8.

Park, K. S., Cho, Y. J., Krishnaprasad, N. K., Scharver, C., Lewis, M. J., Leigh, J., & Johnson, A. E. (2000). CAVERNsoft G2: a toolkit for high performance tele-immersive collaboration. In Proceedings of VRST '00: Proceedings of the ACM symposium on Virtual reality software and technology, New York, NY, USA, pp. 8-15.

Pausch, R., Crea, T., & Conway, M. (1992). A literature survey for virtual environments: military flight simulator visual systems and simulator sickness. Presence: Teleoper. Virtual Environ., 1(3), pp. 344-363.

Pausch, R., Proffitt, D., & Williams, G. (1997). Quantifying Immersion in Virtual Reality. In Proceedings of SIGGRAPH '97: Proceedings of the 24th Annual Conference on Computer Graphics and Interactive Techniques, New York, NY, USA, pp. 13-18.

Pearson, J. C., & Nelson, P. E. (1994). Understanding and Sharing: An Introduction to Speech Communication: Brown and Benchmark Pub.

Pedersen, E. R., McCall, K., Moran, T. P., & Halasz, F. G. (1993). Tivoli: an electronic whiteboard for informal workgroup meetings. In Proceedings of CHI '93: Proceedings of the SIGCHI conference on Human factors in computing systems, New York, NY, USA, pp. 391-398.

Penington, D. L. (1985). Intercultural Communication. In Intercultural Communication: A Reader (pp. 31-36): Wadsworth Publishing.

Poupyrev, I., Weghorst, S., Billinghurst, M., & Ichikawa, T. (1998). Egocentric object manipulation in virtual environments: empirical evaluation of interaction techniques. Computer Graphics Forum, 17(3), pp. 41-52.

Prasolova-Førland, E. (2005). Analyzing Place Metaphors in Different Educational CVE's: Lessons Learned. In Proceedings of IADIS International Conference on Cognition and Exploratory Learning in Digital Age (CELDA 2005), Porto, Portugal, pp. 325-332.

Psotka, J. (1995). Immersive training systems: Virtual reality and education and training. Instructional Science, 23(5-6), pp. 405-431.

Purbrick, J., & Greenhalgh, C. (2003). An extensible event-based infrastructure for networked virtual worlds. Presence: Teleoperators and Virtual Environments, 12(1), pp. 68-84.

Raskar, R., Welch, G., Cutts, M., Lake, A., Stesin, L., & Fuchs, H. (1998). The Office of the Future: A Unified Approach to Image-Based Modeling and Spatially Immersive Displays. In Proceedings of SIGGRAPH '98: Proceedings of the 25th Annual Conference on Computer Graphics and Interactive Techniques, New York, NY, USA, pp. 179-188.

Riva, G. (1999). Virtual Reality as Communication Tool: A Sociocognitive Analysis. Presence: Teleoperators and Virtual Environments, 8(4), pp. 462-468.

Roberts, D., Al-Liabi, M., Wolff, R., Otto, O., & Al-Khalifah, A. (2005a). Reducing Fragmentation in Telecollaboration by Using IPT Interfaces. In Proceedings of IPT-EGVE Workshop, pp. 211-216.

Roberts, D., Heldal, I., Otto, O., & Wolff, R. (2006). Factors influencing creativity in collaborative virtual environments. To be published in VR Journal special issue: Collaborative Virtual Environments for Creative People.

Roberts, D., & Wolff, R. (2004a). Controlling Consistency within Collaborative Virtual Environments. In Proceedings of The Eighth IEEE International Symposium on Distributed Simulation and Real Time Applications, DS-RT 2004, pp. 46-52.

Roberts, D., Wolff, R., & Otto, O. (2003). Constructing a Gazebo: Supporting team work in a tightly coupled, distributed task in virtual reality. Presence: Teleoperators and Virtual Environments, 12(6), pp. 644-668.

Roberts, D., Wolff, R., & Otto, O. (2005b). Supporting a Closely Coupled Task between a Distributed Team: Using Immersive Virtual Reality Technology. Computing and Informatics, 24, pp. 1001-1023.

Roberts, D., Wolff, R., Otto, O., Kranzlmueller, D., Anthes, C., & Steed, A. (2004b). Supporting Social Human Communication between Distributed Walk-in Displays. In Proceedings of VRST 2004, pp. 81-88.

Roberts, D. J. (2003). Communication Infrastructures for Inhabited Information Spaces. Inhabited Information Systems, pp. 233-268.

Roberts, D. J., Sharkey, P., & Sandoz, P. (1996). A Real-time Predictive Architecture for Distributed Virtual Reality. In Proceedings of 1st ACM SIGGRAPH Workshop on Simulation & Interaction in Virtual Environments, pp. 279-288.

Roberts, D. J., Strassner, J., Worthington, B. G., & Sharkey, P. (1999). Influence of the Supporting Protocol on the Latencies Induced by Concurrency Control within a Large Scale Multi User Distributed Virtual Reality System. In Proceedings of Interanational Conference on Virtual Worlds and Simulation (VWSIM), SCS Western Multi-conference '99, San Francisco, CA,, Vol. 31, pp. 70-75.

Robinson, M., Pekkola, S., Korhonen, J., Hujala, S., Toivonen, T., & Saarinen, M.-J. (2001). Extending the Limits of Collaborative Virtual Environments. In Collaborative Virtual Environments. Digital Places and Spaces for Interaction (pp. 21-42): Springer Verlag.

Rodden, T. (1996). Populating the Application: A Model of Awareness for Cooperative Applications. In Proceedings of CSCW '96: Proceedings of the 1996 ACM conference on Computer Supported Cooperative Work, New York, NY, USA, pp. 87-96.

Ruddle, R. A., Savage, J. C., & Jones, D. M. (2002). Symmetric and Asymmetric Action Integration during Cooperative object Manipulation in Virtual Environments. ACM Transactions on Computer-Human Interaction (ToCHI), 9(4), pp. 285-308.

Salem, B. (2005). Commedia Virtuale: from theatre to avatars. Digital Creativity Journal, 16(3), pp. 129-139.

Sallnäs, E.-L. (2005). Effects of Communication Mode on Social Presence, Virtual Presence, and Performance in Collaborative Virtual Environments. Presence - Teleoperators and Virtual Environments, 14(4), pp. 434-449.

Sallnäs, E.-L., Rassmus-Gröhn, K., & Sjöström, C. (2000). Supporting Presence in Collaborative Environments by Haptic Force Feedback. ACM Transactions on Computer-Human Interaction (ToCHI), 7(4), pp. 461.

Samover, L. A., & Porter, R. E. (1985). Approaching Intercultural Communication. In Intercultural Communication: A Reader (pp. 15-30): Wadsworth Publishing.

Sander, I. (2005). Studying of Rehabilitation for Patients with Balance Disorders and Loss of Motor Coordination in Real and Virtual Environments. MSc, CVE, University of Salford, Mancherster.

Sas, C., & O'Hare, G. M. P. (2003). Presence equation: an investigation into cognitive factors underlying presence. Presence: Teleoperators and Virtual Environments, 12(5), pp. 523.

Schmalstieg, D., Fuhrmann, A., Hesina, G., Szalav\'ari, Z., Encarnaccão, M. L., Gervautz, M., & Purgathofer, W. (2002). The Studierstube Augmented Reality Projects. Presence: Teleoperators and Virtual Environments, 11(1), pp. 33-54.

Schmidt, K. (2002). The Problem with 'Awareness': Introductory Remarks on 'Awareness in CSCW'. Computer Supported Cooperative Work, 11(3), pp. 285-298.

Schroeder, R. (2002). The Social Life of Avatars: Presence and Interaction in Shared Virtual Environments. London, UK: Springer Verlag.

Schroeder, R., Steed, A., Axelsson, A. S., Heldal, I., Abelin, A., Widestroem, J., Nilsson, A., & Slater, M. (2001). Collaborating in networked immersive spaces: as good as being there together? Computers and Graphics, 25(5), pp. 781-788.

Schubert, T. W., Friedmann, F., & Regenbrecht, H. T. (1999). Embodied presence in virtual environments. In In Visual Representations and Interpretations (pp. 268-278): Springer-Verlag.

Schuemie, M. J., Straaten, P. v., M.Krijn, & Mast, C. A. P. G. v. (2001). Research on Presence in VR: a Survey. CyberPsychology and Behavior, 4(2), pp. 183-202.

Seelig, M., Roberts, D. J., Harwin, W., Otto, O., & Wolff, R. (2004). A haptic interface for linked immersive and desktop displays: Maintaining sufficient frame rate for haptic rendering. In Proceedings of 17th International Conference on Parallel and Distributed Computing Systems (PDCS 2004), San Francisco, CA, USA, pp. 478-483.

Sharkey, P. M., Ryan, M. D., & Roberts, D. J. (1998). Theoretical and Practical Constraints on Shared Virtual Environments due to Latency. In Proceedings of Systems Aspects of Sharing a Virtual Reality Workshop, Collaborative Virtual Environments (CVE 98), Manchester, UK.

Sheridan, T. B. (2000). Interaction, Imagination and Immersion some Research Needs. In Proceedings of VRST '00: Proceedings of the ACM symposium on Virtual reality software and technology, New York, NY, USA, pp. 1-7.

Short, J., Williams, E., & Christie, B. (1976). The Social Psychology of Telecommunications. New York: Wiley.

Singer, M. J., Ehrlich, J., & Cinq-Mars, S. (1995). Task Performance in Virtual Environments: Stereoscopic Versus Monoscopic Displays and Head-Coupling.

Singer, M. J., & Witmer, B. G. (1999). On Selecting the Right Yardstick. Presence: Teleoperators and Virtual Environments, 8(5), pp. 566-573.

Sitzman, K. (2003). Likert type questions may be helpful for baseline inquiry. AAOHN Journal, 51(7), pp. 320.

Skinner, B. F. (1971). Beyond Freedom and Dignity: Alfred A. Knopf.

Slater, M. (1999). Measuring Presence: A Response to the Witmer and Singer Presence Questionnaire. Presence: Teleoperators and Virtual Environments, 8(5), pp. 560.

Slater, M., Sadagic, A., Usoh, M., & Schroeder, R. (2000a). Small Group Behaviour in a Virtual and Real Environment: A Comparative Study. Presence: Teleoperators and Virtual Environments, 9(1), pp. 37-51.

Slater, M., & Steed, A. (2000b). A Virtual Presence Counter. Presence: Teleoperators and Virtual Environments, 9(5), pp. 413-434.

Slater, M., & Usoh, M. (1993). The influence of a virtual body on presence in immersive virtual environments. In Proceedings of Virtual Reality International 93: Proceedings of the third annual conference on Virtual Reality, London, pp. 34-42.

Slater, M., Usoh, M., & Steed, A. (1994). Depth of Presence in Virtual Environments. Presence: Teleoperators and Virtual Environments, 3(2), pp. 130-144.

Snow, M. P. (1996). Charting presence in virtual environments and its effects on performance. PhD, Virginia Polytechnic Institute and State University, Blacksburg, Virginia.

Snow, M. P., & Williges, R. C. (1998). Empirical models based on free-modulus magnitude estimation of perceived presence in virtual environments. Human Factors, 40(3), pp. 386-402.

Snowdon, D., Churchill, E. F., & Munro, A. J. (2001). Collaborative Virtual Environments: Digital Spaces and Places for CSCW: An Introduction. In Collaborative Virtual Environments: Digital Places and Spaces for Interaction (pp. 3-17). London, UK: Springer Verlag.

Speeter, T. H. (1992). Transforming Human Hand Motion for Telemanipulation. Presence: Teleoperators and Virtual Environments, 1(1), pp. 63-79.

Ståhl, O. (1999). Meetings for Real-Experiences from a Series of VR-based Project Meetings. In Proceedings of VRST '99: Proceedings of the ACM Symposium on Virtual Reality Software and Technology, New York, NY, USA, pp. 164-165.

Stanney, K., & Salvendy, G. (1998). Aftereffects and Sense of Presence in Virtual Environments: Formulation of a Research and Development Agenda. International Journal of Human-Computer Interaction, 10(2), pp. 135-187.

Steed, A., Mortensen, J., & Frécon, E. (2001). Spelunking: Experiences using the DIVE System on CAVE-like Platforms. Immersive Projection Technologies and Virtual Environments, pp. 153-164.

Steed, A., & Parker, C. (2005). Evaluating Effectiveness of Interaction Techniques across Immersive Virtual Environment Systems. Presence: Teleoperators and Virtual Environments, 14(5), pp. (in press).

Steed, A., Slater, M., Sadagic, A., Tromp, J., & Bullock, A. (1999). Leadership and collaboration in virtual environments. In Proceedings of IEEE Virtual Reality, pp. 112-115.

Stevens, B., Jerrams-Smith, J., Heathcote, D., & Callear, D. (2002). Putting the virtual into reality: assessing object-presence with projection-augmented models. Presence: Teleoperators and Virtual Environments, 11(1), pp. 79-92.

Stone, R. J. (2000). Haptic Feedback: A Brief History from Telepresence to Virtual Reality. In Proceedings of Haptic Human-Computer Interaction, Glasgow, Scotland, pp. 1-7.

Tan, D. S., Gergle, D., Scupelli, P. G., & Pausch, R. (2003). With Similar Visual Angles, Larger Displays Improve Spatial Performance. In Proceedings of Conference on Human factors in Computing Systems (CHI), Ft. Lauderdale, Florida, USA, Vol. 5, pp. 217-224.

Tannen, D. (2001). You Just Don't Understand: Women and Men in Communication: Harper Paperbacks.

Thie, S., & Wijk, J. (1998). A General Theory on Presence. In Proceedings of Presence in Shared Virtual Environments Workshop, First International Workshop on Presence.

Tickle-Degnen, L., & Puccinelli, N. M. (1999). The Nonverbal Expression of Negative Emotions: Peer and Supervisor Responses to Occupational Therapy Students' Emotional Attributes. Occupational Therapy Journal of Research, 19(1), pp. 18-39.

Towles, H., Chen, W.-C., Yang, R., Kum, S.-U., Fuchs, H., Kelshikar, N., Mulligan, J., Daniilidis, K., Holden, L., Zeleznik, B., Sadagic, A., & Lanier, J. (2002). 3D Tele-Collaboration Over Internet2. In Proceedings of International Workshop on Immersive Telepresence (ITP2002), Juan Les Pins, France.

Tromp, J., Bullock, A., Steed, A., Sadagic, A., Slater, M., & Frécon, E. (1998). Small Group Behavior Experiments in the Coven Project. IEEE Comput. Graph. Appl., 18(6), pp. 53.

Ulhaas, K. D., & Schmalstieg, D. (2001). Finger Tracking for Interaction in Augmented Environments. In Proceedings of ISAR '01: Proceedings of the IEEE and ACM International Symposium on Augmented Reality (ISAR'01), Washington, DC, USA, pp. 55.

Usoh, M., Catena, E., Arman, S., & Slater, M. (2000). Using Presence Questionnaires in Reality. Presence: Teleoperators and Virtual Environments, 9(5), pp. 497-503.

Van der Linde, R. Q., Lammertse, P., Frederikson, E., & Ruiter, B. (2002). The Haptic Master, a new high-performance haptic interface. In Proceedings of EUROHAPTICS 2002.

The VirtuSphere. (2004). from http://www.virtusphere.com

Wainfan, L., & Davis, P. (2004). Challenges in Virtual Collaboration: RAND National Security Research Division.

Welch, R., Blackmon, T. T., Liu, A., Mellers, B. A., & Stark, L. W. (1996). The Effects of Pictorial Realism, Delay of Visual Feedback, and Observer Interactivity on the Subjective Sense of Presence. Presence: Teleoperators and Virtual Environments, 5(3), pp. 263-273.

Welch, R. B. (1997). The Presence of Aftereffects. In Designs of computing Systems: Cognitive Considerations (pp. 271-276): Amsterdam: Elsevier.

Welch, R. B. (1999). How Can We Determine if the Sense of Presence Affects Task Performance? Presence: Teleoperators and Virtual Environments, 8(5), pp. 574-577.

Whittaker, S. (1995). Rethinking video as a technology for interpersonal communications: theory and design implications. International Journal of Human-Computer Studies, 42(5), pp. 501-529.

Whittaker, S. (2003). Things to talk about when talking about things. Human-Computer Interaction, 18(1-2), pp. 149-170.

Whittaker, S., Geelhoed, E., & Robinson, E. (1993). Shared workspaces: how do they work and when are they useful? International Journal of Man-Machine Studies, 39(5), pp. 813-842.

Wiederhold, B. K., Davis, R., & Wiederhold, M. D. (1998). The effects of immersiveness on physiology. In Virtual Environments in Clinical Psychology and Neuroscience: Methods and Techniques in Advanced Patient-therapist Interaction (pp. 52-60): IOS Press.

Wolff, R. (2005). Reconfigurable Event Handling for CVE Systems: Centre for Virtual Environments, University of Salford, UK.

Wolff, R. (2006). Supporting Closely Coupled Collaboration around Shared Objects in Immersive Virtual Environments. PhD, University of Salford, Salford.

Wolff, R., Roberts, D. J., & Otto, O. (2004). A Study of Event Traffic during the Shared Manipulation of Objects within Collaborative Virtual Environments. Presence: Teleoperators and Virtual Environments, 13(3), pp. 251-262.

Wood, J. T. (2004). Gendered Lives: Communication, Gender, and Culture: Wadsworth Publishing.

Yang, R., Nashel, A., & Towles, H. (2004). Interactive 3D Teleconferencing with User-Adaptive Views. In Proceedings of ETP '04: Proceedings of the 2004 ACM SIGMM Workshop on Effective Telepresence, New York, NY, USA, pp. 50-51.

Youngblut, C. (2003). Experience of Presence in Virtual Environments (Tech. Report No. D-2960): Institute for Defense Analyses (ida.org).

Zimmons, P., & Panter, A. (2003). The Influence of Rendering Quality on Presence And Task Performance in a Virtual Environment. In Proceedings of VR '03: Proceedings of the IEEE Virtual Reality 2003, Washington, DC, USA, pp. 293.