Halicki, Wojciech, Dagmara Kołeczek, and Magdalena Twarda-Rafalska. “Reintroduction of European Bison to Semi-Natural Meadows in Grażyna Valley Within the Confines of the Rural Areas Development Program for Years 2007–2013”. European Bison Conservation Newsletter 2 (September 1, 2009): 197–. Accessed April 27, 2024. http://ojs.wisent.org/index.php/czasopismo/article/view/191.