The most recent information about the restitution of the European bison (Bison bonasus) to National Park Poloniny. European Bison Conservation Newsletter, [S. l.], v. 1, p. 146–152, 2008. Disponível em: https://ojs.wisent.org/index.php/czasopismo/article/view/17. Acesso em: 28 jul. 2026.