El-Naggar, A. M.; Zaher, M. R.; El-Ghaffar, S. A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 4, p. 392 - 395
El-Naggar, A. M.; Zaher, M. R.; El-Ghaffar, S. A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1983, vol. 22, # 4, p. 392 - 395