HALICKI, W.; KOŁECZEK, D. The concept of a breeding enclosure in Sycowice. European Bison Conservation Newsletter, [S. l.], v. 3, p. 137–148, 2010. Disponível em: http://ojs.wisent.org/index.php/czasopismo/article/view/159. Acesso em: 28 apr. 2024.