Piętka S, Misiukiewicz W, Olszewski A. The The impact of the different period of occurrence of the European beaver population on its feeding behavior and impact on the environment. POl. J. Natur. Sc. [Internet]. 2023 Dec. 31 [cited 2024 May 10];38(2). Available from: https://czasopisma.uwm.edu.pl/index.php/pjns/article/view/9376