R. J. Crampton, Eastern Europe in the Twentieth Century. Zeitschrift für Ostmitteleuropa-Forschung, [S. l.], v. 46, n. 1, p. 82–83, 1997. DOI: 10.25627/19974616234. Disponível em: https://openjournals.osmikon.de/zfo/article/view/6234. Acesso em: 16 sep. 2026.