Jewish Historical Institute in Warsaw, Holocaust Survivor Testimonies (coll. 301), Marta Klein Testimony (301/12). Original in Polish.
Testimony of Marta Klein on the actions against Jews in Vilnius and Białystok and deportations to Treblinka, her escape en route to the camp, her rescue by a Pole, Czuliński, and the arrest of her son and his protector after their betrayal.
Yad Vashem Archives, The Central Historical Commission of the Central Committee of Liberated Jews in the U.S. Zone (M.1.E), file no. 3540469. Original in Yiddish.
Testimony of Rozia Shoshana Pinczewska regarding the betrayal of, cruelty towards, and murder of her family by Poles, and her survival.
