Essawy, A.; El-Hashash, M. A.; Mohamed, M. M.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 8 p. 663 - 666

Essawy, A.; El-Hashash, M. A.; Mohamed, M. M.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 8 p. 663 - 666