Jean W. Sedlar, East Central Europe in the Middle Ages, 1000-1500. Zeitschrift für Ostmitteleuropa-Forschung, [S. l.], v. 45, n. 2, p. 237–238, 1996. DOI: 10.25627/19964526084. Disponível em: https://openjournals.osmikon.de/zfo/article/view/6084. Acesso em: 16 sep. 2026.