Wójtowicz, Bernadetta. “Father Petro Verhun - the Story of His Life and Death”. Studia Ecologiae et Bioethicae 3, no. 1 (December 31, 2005): 481–488. Accessed November 23, 2024. https://czasopisma.uksw.edu.pl/index.php/seb/article/view/7810.