Yoshimura, Toshiaki; Ohkubo, Masanori; Fujii, Takayoshi; Kita, Hiroshi; Wakai, Youko; Ono, Shin; Morita, Hiroyuki; Shimasaki, Choichiro; Horn, Ernst Bulletin of the Chemical Society of Japan, 1998 , vol. 71, # 7 p. 1629 - 1637