Ishida, Masaru; Ichikawa, Kiyoshi; Asano, Masahiko; Nakanishi, Hirofumi; Kato, Shinzi
Synthesis, 1987 , # 4 p. 349 - 353

Nachmias
Annales de Chimie (Cachan, France), 1952 , vol. <12> 7, p. 584,599