Koto, Shinkiti; Shinoda, Yoshika; Hirooka, Motoko; Sekino, Akiko; Ishizumi, Sachiko; Koma, Mutsuko; Matuura, Chieko; Sakata, Naoko Bulletin of the Chemical Society of Japan, 2003, vol. 76, # 8 p. 1603 - 1615