1. Baarly, J. (Ed.). (1991). Novaya Zemlya. Ecological Security of Underground Nuclear Tests. (Translated from Russian). Report 92-03, University of Oslo, presented at the International Symposium on Underground Nuclear Tests, Ottawa, April 12–16, 46.
2. Dynamic model for radionuclide uptake in lichen;Ellis;Journal of Environmental Radioactivity,1987
3. Plutonium in lichen communities of the Thule, Greenland region during the summer of 1968;Hanson;Health Physics,1972
4. Fall-out plutonium in Swedish Reinder lichen;Holm;Health Physics,1975
5. Israel, Yu. A., Petrov, V. N., Pressman, A. Ya., Rovinsky, F. Ya., Stukin, E. D., & Ter-Saakov, A.A. (1970). Radioactive contamination of environment by underground nuclear explosions and its prediction, (pp. 22–29). Leningrad: Gidrometizdat (in Russian).