Distribution of anthropogenic and naturally occurring radionuclides in soils and lakes of Central Spitsbergen (Arctic) - Łokas, Edyta; Zwoliński, Zbigniew; Rachlewicz, Grzegorz; Gąsiorek, Michał; Wilkosz, Grzegorz; Samolej, Krzysztof (Journal of Radioanalytical and Nuclear Chemistry, 2016)