Kołacz-Chmiel M. 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). zfo [Internet]. 2025 Sep. 11 [cited 2026 Sep. 16];74(3):317–350. Available from: https://openjournals.osmikon.de/zfo/article/view/11701