1. Bhatt M V and El Ashry S H 1980Indian J. Chem.
B19 487
2. Bhatt M V, El Ashry S H, and Balakrishnan M 1979Proc. Indian Acad. Sci. (Chem. Sci.)
A88 421
3. Bhatt M V, El Ashry S H and Somayaji V 1980Proc. Indian Acad. Sci. (Chem. Sci.)
89 7
4. Bhatt M V and Somayaji V 1984Communicated
5. Bischoff C A and Hedenstrom A V 1902Ber.
35 4092