Sarma, M. S. Prasad; Rao, G. S. Krishna, Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 257 - 258
Sarma, M. S. Prasad; Rao, G. S. Krishna, Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 257 - 258