Ibrahim, M. K. A.; El-Gharib, M. S.; Farag, A. M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 836 - 839
Ibrahim, M. K. A.; El-Gharib, M. S.; Farag, A. M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 836 - 839