R. Mccrindle, und D. Symons. Proceedings of the Third International Conference on Disability, Virtual Reality and Associated Technologies, Seite 59--65. (2000)
J. Back, W. Cheng, R. Dann, P. Curzon, und A. Blandford. People and Computers XX -- Engage, Part 4, Springer London, London, The original publication is available at www.springerlink.com.(2007)
J. Back, W. Cheng, R. Dann, P. Curzon, und A. Blandford. People and Computers XX -- Engage, Part 4, Springer London, London, The original publication is available at www.springerlink.com.(2007)