Youssef, M. S. K.; Metwally, S. A. M.; El-Maghraby, M. A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 9, p. 878 - 881
Youssef, M. S. K.; Metwally, S. A. M.; El-Maghraby, M. A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 9, p. 878 - 881