El-Naggar, A. M.; Zaher, M. R.; Haroun, B. M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 12, p. 1106 - 1109
El-Naggar, A. M.; Zaher, M. R.; Haroun, B. M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 12, p. 1106 - 1109