Yoshimura, Toshiaki; Dong, Tiaoling; Fujii, Takayoshi; Ohkubo, Masanori; Sakuta, Mikiko; Wakai, Youko; Ono, Shin; Morita, Hiroyuki; Shimasaki, Choichiro Bulletin of the Chemical Society of Japan, 2000 , vol. 73, # 4 p. 957 - 965