1. G. I. Gorgiladze, Fiziol. Zh. SSSR, No. 6, 669 (1966).
2. G. I. Gorgiladze and G. S. Kazanskaya, Fiziol. Zh. SSSR, No. 1, 45 (1971).
3. Yu. G. Grigor'ev, V. A. Galichii, and A. A. Shipov, Izv. Akad. Nauk SSSR, Ser. Biol., No. 4, 485 (1968).
4. C. Blomstrand, O. Hallen, A. Hamberger, et al., Acta Oto-laryngol. (Stockholm),61, 113 (1966).
5. H.-G. Boenninghaus and M. Frank, Z. Laryngol. Rhinol.,51, 68 (1972).