. . "irn610031" . . . . "Oral history interview with Felix Heilpern"@en . "2015 July 28" . "1 digital file, MPEG-4"@en . "United States Holocaust Memorial Museum"@en . . "No restrictions on access"@en . "Ina Navazelskis, on behalf of the United States Holocaust Memorial Museum Oral History Branch, conducted the oral history interview with Felix Heilpern on July 28, 2015."@en . . "No restrictions on use"@en . .