1. Cambray, R. S., P. A. Cawse, J. A. Garland, J. A. B. Gibson, P. Johnson, G. N. J. Lewis, D. Newton, L. Salmon & B. Wade, 1987. Observations on radioactivity from the Chernobyl accident. Nuclear Energy 26: 77?101.
2. Dominik, J., D. Burrus & J.-P. Vernet, 1987. Transport of the environmental radionuclides in an alpine watershed. Earth Planet. Sci. Lett. 84: 165?180.
3. Frissel, M. J. & R. Pennders, 1983. Models for the accumulation and migration of 90Sc, 137Cs, 239,240Pu and 241Am in the upper layers of soils. Spec. Pub. Br. ecol. Soc. 3: 63?72.
4. Graham, E. R. & D. D. Killion, 1962. Soil colliods as a factor in the uptake of cobalt, caesium and strontium by plants. Proc. Soil Sci. Soc. Am. 26: 545?547.
5. Hutchinson, S. M., N. Richardson, P. G. Appleby & F. Oldfield, 1989. Chernobyl radioisotopes in lake-watershed systems in Galloway, south-west Scotland. Paper presented at the Vth International Symposium on Palaeolimnology, Ambleside, Cumbria, September, 1989.