1. Yu. G. Grigoriev, N. Ya. Savchenko, and N. N. Ryzhkov, Problems in Radiobiology and the Biological Action of Cytostatics [in Russian], Tomsk (1971), pp. 5–10.
2. M. Kozurkova, K. Kropačova, E. Mišurova, and R. Rexa, Byull. Éksp. Biol. Med.,113, No. 2 (1992).
3. O. V. Malinovskii, N. Ya. Mikhailova, N. Ya. Sigaleva, and T. A. Sheikina, Tsitologiya,15, 1048 (1973).
4. R. G. Tsanev and G. G. Markov, Biokhimiya, No. 1, 151 (1960).
5. G. Gross and W. Haase, Med. Welt,22, 1350 (1971).