Inouye, Yoshinobu; Fukaya, Chikara; Kakisawa, Hiroshi
Bulletin of the Chemical Society of Japan, 1981 , vol. 54, # 4 p. 1117 - 1125

Ficini,J.; Maujean,A.
Bulletin de la Societe Chimique de France, 1972 , p. 4392 - 4395