1. Christl, M., Adv. Strain Org. Chem., 1995, vol. 4, p. 163.
2. Razin, V.V., Sovremennye problemy organicheskoi khimii. Mezhvuzovskii sbornik (Current Problems of Organic Chemistry. An Interinstitution Collection), St. Petersburg: Sankt-Peterb. Gos. Univ., 1996, no. 11, p. 54.
3. Vasin, V.A., Russ. J. Org. Chem., 1995, vol. 31, p. 1258.
4. Vasin, V.A., Semenov, A.V., and Razin, V.V., Russ. J. Org. Chem., 2002, vol. 38, p. 803.
5. Vasin, V.A., Semenov, A.V., and Razin, V.V., Russ. J. Org. Chem., 2004, vol. 40, p. 653.