Yokoyama, Masataka; Ohteki, Hiroko; Kurauchi, Masahiko; Hoshi, Kazuko; Yanagisawa, Eizaburo; et al. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1984 , # 11 p. 2635 - 2640