1. S. M. Vakulovskii, I. Yu. Katrich, Yu. V. Krasnopevtsev, et al., ?Radioactive contamination of the Baltic Sea in 1980,? in: Radiation Safety Control in the Operation of Atomic Electric Power Plants [in Russian], Vol. 4, Energoagomizdat, Moscow (1984), pp. 127?136.
2. G. I. Kadzhene, I. V. Kleiza, V. P. Korotkov, et al., ?Artificial radionuclides in the surface waters of the Baltic Sea and the North Sea during the autumn of 1984,? At. Énerg.,62, No. 4, 248?251 (1987).
3. E. Dreisigacker and W. Roether, ?Tritium and90Sr in North Atlantic surface water,? Earth Planet Sci. Lett.,38, No. 2, 301?302 (1978).