Salwa, Andrzej, Krzysztof Anusz, Mirosław Welz, Ryszard Wozikowski, Magdalena Zaleska, and Jerzy Kita. 2011. “Analysis of the Epizootiologic Situation in Livestock and Free-Living Wildlife in the Bieszczady Mountains in Relation to the Occurrence of Tuberculosis in European Bison (Bison Bonasus)”. European Bison Conservation Newsletter 4 (September):71-80. https://ojs.wisent.org/index.php/czasopismo/article/view/133.