Kuroda, Shigeyasu; Mouri, Masaru; Hayashi, Katsuki; Oda, Mitsunori; Yamada, Masaki; et al.
Chemistry Letters, 1994 , # 1 p. 85 - 88

Tsuge, Otohiko; Okita, Shigeru; Noguchi, Michihiko; Watanabe, Haruyuki
Chemistry Letters, 1981 , p. 1439 - 1442