Ammar, Y. A.; El-Sharief, A. M. Sh.; Mohamed, Y. A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1989, vol. 28, # 1-11, p. 410 - 413
Ammar, Y. A.; El-Sharief, A. M. Sh.; Mohamed, Y. A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1989, vol. 28, # 1-11, p. 410 - 413