Siddiqui, A. H.; Afzal, M. N.; Baig, M. H., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1984, vol. 23, # 11, p. 1108 - 1109
Siddiqui, A. H.; Afzal, M. N.; Baig, M. H., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1984, vol. 23, # 11, p. 1108 - 1109