1. D. N. Platonov, D. V. Dorokhov, and Yu. V. Tomilov, Abstrs of Papers, VII Conf. on the Chemistry of Carbenes and Related Intermediates, Kazan, RF, 2003, p. 86.
2. Yu. V. Tomilov, D. N. Platonov, B. B. Averkiev, E. V. Shulishov, and O. M. Nefedov, Izv. Akad. Nauk. Ser. Khim., 2003, 176 [Russ. Chem. Bull., Int. Ed., 2003, 52, 187].
3. W. Sliwa and G. Matusiak, Heterocycles, 1985, 23, 1513.
4. Yu. P. Kitaev and B. I. Buzykin, Gidrazony [Hydrazones], Nauka, Moscow, 1974, 415 pp. (in Russian).
5. J. March, Adv. Org. Chem., John Wiley and Sons, New York, 1992, p. 1141.