1. J. Bure?, M. Petran, and I. Zachar, Electrophysiological Methods of Investigation [in Russian], Moscow (1962).
2. M. M. Rasulov and M. G. Voronkov, Dokl. Akad. Nauk. Rossii315, No. 4, 1007 (1990).
3. K. V. Sudakov, Vestn. Ross. Akad. Med. Nauk, No. 2, 3 (1982).
4. A. N. Talalaenko, V. V. Getmanov, V. P. Gritsyuk, et al., Byull. Éksp. Biol. Med., No. 9, 261 (1989).
5. D. Barone, F. Pizzooccheri, and N. Corsico, Pharmacol. Res. Commun.,19, No. 12, 973 (1989).