Naim, S. Shawkat; Singh, Sudhir K.; Sharma, Satyavan, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 1106 - 1109
Naim, S. Shawkat; Singh, Sudhir K.; Sharma, Satyavan, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 1106 - 1109