Honma, Masahiro; Sawada, Takashi; Fujisawa, Yuri; Utsugi, Masayuki; Watanabe, Hideaki; Umino, Akinori; Matsumura, Takehiko; Hagihara, Takayuki; Takano, Masashi; Nakada, Masahisa Journal of the American Chemical Society, 2003 , vol. 125, # 10 p. 2860 - 2861