Srivastava, Versha; Sen, Srirupa; Shekhar, Rita, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1994, vol. 33, # 4, p. 344 - 349
Srivastava, Versha; Sen, Srirupa; Shekhar, Rita, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1994, vol. 33, # 4, p. 344 - 349