Ahmad, M. S.; Ansari, Imtiaz Ahmad; Moinuddin, Ghulam, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 7, p. 602 - 604
Ahmad, M. S.; Ansari, Imtiaz Ahmad; Moinuddin, Ghulam, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 7, p. 602 - 604