Jasaitis, D., M. Pečiulienė, and A. Girgždys. “Evaluation of Radionuclide Concentration in the Bottom Ground of Water Reservoirs and Waterside Soil”. Journal of Environmental Engineering and Landscape Management, vol. 12, no. 3, Sept. 2004, pp. 85-90, doi:10.3846/16486897.2004.9636824.