Freeman, Sally; Harger, Martin J.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 1399 - 1406
Yoshifuji, Masaaki; Ando, Kaori; Toyota, Kozo; Shima, Ichiro; Inamoto, Naoki
Journal of the Chemical Society, Chemical Communications, 1983 , # 8 p. 419 - 420