Petr Charvát, The Emergence of the Bohemian State. Zeitschrift für Ostmitteleuropa-Forschung, [S. l.], v. 61, n. 1, p. 69–70, 2012. DOI: 10.25627/20126119291. Disponível em: https://openjournals.osmikon.de/zfo/article/view/9291. Acesso em: 16 sep. 2026.