1. A. N. Gardash'yan. Zh. mikrobiol. (1950), No. 10, p. 32.
2. V. V. Gorodilova, (1952), No. 1, p. 23.
3. D. M. Levina, Ibid. (1952), No. 1, p. 33.
4. I. N. Maiskii and G. V. Suborova. Thesis report. First All-Union Conference on the problem of tissue incompatibility and transplantation of organs and tissues. [in Russian]. Moscow (1957), p. 24.
5. I. N. Maiskii and G. V. Suborova, Byull. Éksper. biol., (1957), No. 9, p. 94.