Kopciowski, A. and Libionka, D. 2023. Testimony of Poale Zion Left activist Pola Elster regarding the situation at the Umschlagplatz and in the transport to Poniatowa in April 1943. Zagłada Żydów. Studia i Materiały. 19 (Dec. 2023), 138-152. DOI:https://doi.org/10.32927/zzsim.1027.