El-Sharief, A. M. Sh.; Ammar, M. S.; Ammar, Y. A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 7, p. 700 - 704
El-Sharief, A. M. Sh.; Ammar, M. S.; Ammar, Y. A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 7, p. 700 - 704