1. V. M. Shubko, St90 Fallout on the Surface of the Territories of the USSR [in Russian], Moscow, Izd-vo AN SSSR (1959).
2. V. I. Baranov and V. D. Vilenskii, Radiokhimiya,4, 486 (1962).
3. A. K. Lavrukhina, T. V. Malysheva, and F. I. Pavlotskaya, Radiochemical Analysis, [in Russian], Moscow, Izd-vo AN SSSR (1963), p. 192.
4. V. M. Shubko and A. M. Eremycheva, Documents OOH A/AC 82/g/L-916 (1963); A/AC 82/g/L-706 (1961).
5. S. G. Malakhov, E. N. Davydov, and N. A. Karagod, Document OOH A/AC 82/g/L-902 (1963).