"Peter Wortsman recorded a discussion in Linz, Austria, with Hermann Langbein and others on the 30th anniversary of the liberation of Auschwitz on January 20, 1975. The recording was received by the United States Holocaust Memorial Museum on September 9, 2003."@en . . . "irn516343" . "No restrictions on access"@en . . "2 sound cassettes (90 min.),"@en . . "Oral history interview with Hermann Langbein and others"@en . . . "No restrictions on use"@en . "1975 January 20" .