Sayed, G. H.; Elhalim, M. S. Abd; El-Kady, M. Y., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 6, p. 589 - 591
Sayed, G. H.; Elhalim, M. S. Abd; El-Kady, M. Y., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 6, p. 589 - 591