KOŁACZ-CHMIEL, Małgorzata. The Society of the Polish-Ruthenian Borderland in Times of Change (in the Example of the 15th-Century Nobility of the Hrubieszów County in Chełm Land). Zeitschrift für Ostmitteleuropa-Forschung, [S. l.], v. 74, n. 3, p. 317–350, 2025. DOI: 10.25627/202574311701. Disponível em: https://openjournals.osmikon.de/zfo/article/view/11701. Acesso em: 16 sep. 2026.