1. Yanovskaya, L.A., Sovremennye teoreticheskie osnovy organicheskoi khimii (Modern Theoretical Foundations of Organic Chemistry), Moscow: Khimiya, 1978, p. 242.
2. Chaikovskii, V.K., Filimonov, V.D., Kulupanova, O.A., and Chernova, T.N., Russ. J. Org. Chem., 1998, vol. 34, p. 997.
3. Chaikovski, V.K., Filimonov, V.D., Yagovkin, A.Y., and Kharlova, T.S., Tetrahedron Lett., 2000, vol. 41, p. 9101.
4. Chaikovskii, V.K., Skorokhodov, V.I., and Filimonov, V.D., Russ. J. Org. Chem., 2001, vol. 37, p. 1503.
5. Chaikovskii, V.K., Filimonov, V.D., Skorokhodov, V.I., and Ogorodnikov, V.D., Russ. J. Org. Chem., 2007, vol. 43, p. 1278.