Idzelis, R. L., S. Bolut, V. Čepanko, and D. Paliulis. “Radiological Investigation of Red Fox (Vulpes Vulpes) in Lithuania”. Journal of Environmental Engineering and Landscape Management, vol. 19, no. 1, Apr. 2011, pp. 53-61, doi:10.3846/16486897.2011.557420.