1. Kutateladze, T.G., Cand. Sci. (Chem.) Dissertation, Moscow, 1988.
2. Kutateladze, T.G., Fedotov, A.N., Mochalov, S.S., and Shabarov, Yu.S., USSR Inventor’s Certificate no. 1 503 257, 1989; Byull. Izobret., 1989, no.31.
3. Kutateladze, T.G., Fedotov, A.N., Mochalov, S.S., and Shabarov, Yu.S., USSR Inventor’s Certificate no. 1 397 436, 1988; Byull. Izobret., 1988, no.19.
4. Helberger, J.H., Justus Liebigs Ann. Chem., 1937, vol. 529, no. 1, p.205.
5. Moorthy, J.N. and Singhal, N., J. Org. Chem., 2005, vol. 70, no. 5, p. 1926.