1. United Nations Scientific Committee on the Effects of Atomic Radiation, Ionizing Radiation: Sources and Biological Effects, 1977 Report to the General Assembly, with Annexes, United Nations, New York, 1977.
2. G. A. WELFORD, A. BAIRD, Health Phys., 13 (1967) 1321.
3. E. I. HAMILTON, Health Phys., 22 (1972) 149.
4. B. L. D. SOMAYAJULA, C. A. MEGHANI, D. B. BOROLE, in: Management of Environment, B. PATEL (Ed.), Weley Eastern Ltd., New Delhi, 1980, p. 528.
5. O. FRINDIK, Bundesforschungsanstalt für Ernährung-Berichte BFE-R-83-0.2, BFE, Karlsruhe, 1983, p. 301.