. "1 digital file, WAV"@en . "Oral history interview with Leni Hoffman"@en . . "Noemi J. Szekely-Popescu, on behalf of the United States Holocaust Memorial Museum Oral History Branch, conducted the oral history interview with Leni Hoffman by telephone on January 5, 2012."@en . "No restrictions on access"@en . . . . . . . "United States Holocaust Memorial Museum"@en . "No restrictions on use"@en . "irn45193" . "2012 January 05" .