Regaila, Hassan A. A.; Gohar, Abd El-Kerim M. N.; El-Khrisy, Ezz El-Din A. M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 7, p. 658 - 661
Regaila, Hassan A. A.; Gohar, Abd El-Kerim M. N.; El-Khrisy, Ezz El-Din A. M., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, # 7, p. 658 - 661