Marian Mroczko, Eugeniusz Romer (1871-1954). Biografia polityczna. Zeitschrift für Ostmitteleuropa-Forschung, [S. l.], v. 58, n. 1-2, p. 249–251, 2009. DOI: 10.25627/2009581-28900. Disponível em: https://openjournals.osmikon.de/zfo/article/view/8900. Acesso em: 16 sep. 2026.