Lakouraj, Moslem Mansour; Tajbakhsh, Mahmood; Ramzanian-Lehmali, Farhad
Phosphorus, Sulfur and Silicon and the Related Elements, 2008 , vol. 183, # 6 p. 1388 - 1395

Singh, Sushma; Kumar, Sanjeev; Sharma, Laxmi Kant; Singh
Journal of the Indian Chemical Society, 2009 , vol. 86, # 7 p. 734 - 738

Singh,H.; Yadav,L.D.S.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1976 , vol. 14B, p. 711 - 713