Klich, Daniel, Wanda Olech, and Krystyna Cielniak. “A Complex Project for the Conservation of European Bison in Poland by State Forests (2017–2020)”. European Bison Conservation Newsletter 10 (September 4, 2017): 11–20. Accessed May 5, 2024. http://ojs.wisent.org/index.php/czasopismo/article/view/47.