1. K. Inoguchi, Y. Saito, H. Nakanishi, and S. Yamazaki: Proc. Virtual Reality Society of Japan Annu. Conf., 2001, p. 359 [in Japanese].
2. S. Yamazaki, K. Inoguchi, Y. Saito, H. Morishima, and N. Taniguchi: Proc. SPIE 3639 (1999) 453.
3. A. Takagi et al.: Proc. Int. Symp. AR (ISAR), 2000, p. 68.
4. K. Garrard, T. Bruegge, J. Hoffman, T. Dow, and A. Sohn: Proc. SPIE 5874 (2005) 58740A.
5. K. Takahashi: 20th Optical Symp., 2000, p. 57 [in Japanese].