German-Ukrainian Relations in Historical Perspective. Zeitschrift für Ostmitteleuropa-Forschung, Marburg, v. 46, n. 4, p. 610–611, 1997. DOI: 10.25627/19974646439. Disponível em: https://openjournals.osmikon.de/zfo/article/view/6439. Acesso em: 31 oct. 2026.