1. G. A. Belokrylov and Yu. L. Zhitnukhin, Zh. Mikrobiol., No. 9, 66 (1976).
2. G. A. Belokrylov, V. G. Morozov, V. Kh. Khavinson, et al., Byull. Éksp. Biol. Med., No. 7, 56 (1977).
3. Yu. M. Galkin and V. G. Dobkin, Éksp. Khir., No. 3, 26 (1975).
4. V. G. Morozov and V. Kh. Khavinson, Éksp. Khir., No. 2, 49 (1974).
5. B. A. Araneo, P. C. Marrack, and J. W. Kappler, J. Immunol.,117, 1233, (1976).