1. (1) JELMA Journal, 502, p.16 (2009) (in Japanese).
2. (2) M. Sakai: JELMA Journal, 497, pp.12-13 (2008) (in Japanese).
3. (3) Y. Ando: JELMA Journal, 501, pp.76-77 (2009) (in Japanese).
4. (1) JELMA Journal, 502, p.16 (2009) (in Japanese).
5. (2) JELMA Journal, 497, pp.8-9 (2008) (in Japanese).