El-Ebrashi, N. M. A.; Nasef, A. M.; Gohar, A-K. M. N., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, p. 773 - 774
El-Ebrashi, N. M. A.; Nasef, A. M.; Gohar, A-K. M. N., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1982, vol. 21, p. 773 - 774