1. B. D. Brondz, S. N. Sura, and A. E. Snegireva, Byull. Eksperim. Biol. i Med., No. 1, 70 (1972).
2. Z. G. Kadagidze and S. N. Sura, Dokl. Akad. Nauk SSSR,179, No. 1, 715 (1968).
3. Z. G. kadagidze and G. Ya. Svet-Moldavskii, J. Nat. Cancer Inst.,46, 92 (1971).
4. G. Ya. Svet-Moldavskii and I. Yu. Chernyakhovskaya, Nature,204, 799 (1964).
5. I. Yu. Chernyakhovskaya, Proceedings of a Scientific Conference of Junior Research Workers of the Institute of Experimental and Clinical Oncology [in Russian], Moscow (1966), p. 11.