El-Sharief, A. M. Sh.; El-Maghraby, A. A.; El-Said, A. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 1, p. 87 - 90
El-Sharief, A. M. Sh.; El-Maghraby, A. A.; El-Said, A. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 1, p. 87 - 90