HORODENSKI, Ryszard; SERWIN, Miroslaw. THE NEEDS, SOURCES, AND CONDITIONS FOR THE STUDY OF THE EASTERN COMMUNES OF BIALYSTOK VOIVODSHIP. Discussion Papers, [S. l.], n. Special, p. 277–296, 1988. Disponível em: http://discussionpapers.rkk.hu/index.php/DP/article/view/2117. Acesso em: 3 apr. 2025.