El-Naggar, A. M.; Ahmed, F. S. M.; Badie, M. F., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 6, p. 514 - 517
El-Naggar, A. M.; Ahmed, F. S. M.; Badie, M. F., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 6, p. 514 - 517