1. S. B. Lapshina, G. V. Girichev, and S. A. Shlykov, Zh. Strukt. Khim.,30, No. 3, 49?54 (1989).
2. N. I. Giricheva, G. V. Girichev, V. M. Petrov, et al., Zh. Strukt. Khim.,29, No. 5, 46?53 (1988).
3. G. V. Girichev and S. B. Lapshina, Zh. Strukt. Khim.,30, No. 3, 55?60 (1989).
4. J. Tremmel, I. Hargittai, I. Bevect, et al., J. Mol. Struct.,55, No. 2, 207?214 (1979).
5. G. V. Girichev, S. A. Shlykov, and Yu. F. Revichev, Prib. Tekh. Éksp., No. 4, 167?169 (1986).