EBERHARDT, P. The concepts of the Polish state boundaries on the threshold of independence. Studies in Political and Historical Geography, [S. l.], v. 4, p. 9–35, 2015. DOI: 10.18778/2300-0562.04.01. Disponível em: https://czasopisma.uni.lodz.pl/studiageogr/article/view/18511. Acesso em: 21 may. 2024.