Jewish Historical Institute in Warsaw, Holocaust Survivor Testimonies (coll. 301), Fischer Schaechter Testimony (301/201). Original in Polish.
Testimony of Fischer Schaechter on his deportation from Hungary to Ukraine in 1942 and his return. He was sent to the Nagyszollos Ghetto and later deported to Auschwitz, where he and his twin brother served as guinea pigs for medical experiments.
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.