SEREDNICKI, A. Jerzy Stempowski o sprawach ukraińskich. Acta Polono-Ruthenica, [S. l.], v. 1, n. II, p. 425–434, 1997. Disponível em: https://czasopisma.uwm.edu.pl/index.php/apr/article/view/4117. Acesso em: 18 maj. 2024.