Singh, Sudhir K.; Naim, S. Shawkat; Sharma, Satyavan, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 1015 - 1018
Singh, Sudhir K.; Naim, S. Shawkat; Sharma, Satyavan, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 1015 - 1018