Asokan; Shukla; Kumar; Ila; Junjappa
Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2001 , vol. 40, # 10 p. 937 - 947

Chandrasekharam, Malapaka; Asokan, Chitoorthekkathil V.; Ila, Hiriyakkanavar; Junjappa, Hiriyakkanavar
Tetrahedron Letters, 1990 , vol. 31, # 12 p. 1763 - 1766