Shridhar, D. R.; Rao, K. Srinivasa; Bhopale, K. K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 6, p. 471 - 473
Shridhar, D. R.; Rao, K. Srinivasa; Bhopale, K. K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. 20, # 6, p. 471 - 473