1. International Nuclear Safety Advisory Group, Summary Report on the Post-Accident Review Meeting on the Chernobyl Accident, Safety Series No. 75-INSAG-1, IAEA, Vienna, 1986.
2. L.A. Il’in, V.A. Filov, Harmful Chemical Substances, Radioactive substances, A Handbook, Khimiya, Leningrad, 1990 (in Russian).
3. Isotopic Pu, U, and Np signatures in soils from Semipalatinsk-21, Kazakh Republic and the Southern Urals, Russia