1. 1. Ministry of Education, Culture, Sports, Science and Technology, Science and Technology Basic Plan, http://www.mext.go.jp/english/org/science/35.htm (2001).
2. 2. M. Ohkura et al.; Comparison of the Impression of the Space between Virtual Environment and Real Environment, Proceedings of the 11th International Conference on Human-Computer Interaction (2005).
3. 3. M. Ohkura et al.; Comparison of the Impression of Spaces in Inclined Projection Display System -The Difference of the Experimental Results between Virtual Environment and Real Environment-, Journal of Japan Society of Kansei Engineering, 6(2), pp.29-34 (2006) (in Japanese).
4. 4. M. Ohkura et al.; Evaluation of Comfortable Spaces for Women using a Virtual Environment, Proceedings of the 12th International Conference on Human-Computer Interaction, pp.959-963 (2007).
5. 5. M. Inui, T. Miyata, K. Watanabe; Evaluation of Spaciousness 1, Transactions of the Architectual Institution of Japan, 192, pp.49-55 (1972) (in Japanese).