Anjaneyulu, A. S. R.; Rao, M. Narayana; Sree, A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1980, vol. 19, # 9, p. 735 - 738
Anjaneyulu, A. S. R.; Rao, M. Narayana; Sree, A., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1980, vol. 19, # 9, p. 735 - 738