Rao, P. V. Subba; Aruna, G. D.; Raju, G. V. Subba, Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 191 - 192
Rao, P. V. Subba; Aruna, G. D.; Raju, G. V. Subba, Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 191 - 192