Ahmad, M. S.; Ansari, Imtiaz A.; Ansari, Shamim A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 664 - 666
Ahmad, M. S.; Ansari, Imtiaz A.; Ansari, Shamim A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1985, vol. 24, p. 664 - 666