Toetsu Shishido,
Jinhua Ye, Shigeru Okada, Kunio Kudou, Masaoki Oku, Kazuo Obara, Takamasa Sugawara, Akira Yoshikawa, Yoshio Ishizawa, Makoto Ogawa, Kiyokata Iizumi, Iwami Higashi, Tadaaki Amano, Shigemi Kohiki, Yoshiyuki Kawazoe, Kazuo Nakajima.
Japanese Journal of Applied Physics 41 [Part 1, No. 5A] 3031-3032. 2002.