KARADENIZ, Özlem - YAPRAK, Günzeli. Activity concentracions of natural radionuclides and 137Cs in soils of coniferous forest sites in West Anatolia. In European Journal of Forest Research. - Berlin : Springer - Verlag, 2011. ISSN 1612-4669, 2011, vol. 130, no. 2, s. 271-276.