Keiichi Okada

发表

Akira Mita, Yuji Yamamoto, Keiichi Okada, 1998 .

Akira Mita, Keiichi Okada, Michihito Shiraishi, 2003, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

Masaaki Saruta, Keiichi Okada, Yutaka Nakamura, 2009 .