Sribnyak, Ihor, et al. “Organizational and National Aspects of the Union for the Liberation of Ukraine Activities in the Camps for Captured Ukrainians of the Tsarist Army in Germany Between 1914 and 1918”. Przegląd Nauk Historycznych Review of Historical Sciences, vol. 24, no. 1, July 2025, pp. 123-48, doi:10.18778/1644-857X.24.01.05.