KARPUS, Z. Polish Military Assistance to Its Ally, the Ukrainian People’s Republic, in 1920. Historia i Polityka, [S. l.], n. 34 (41), p. 207–223, 2020. DOI: 10.12775/HiP.2020.044. Disponível em: https://apcz.umk.pl/HiP/article/view/HiP.2020.044. Acesso em: 20 kwi. 2024.