. "Oral history interview with John Otto Kessler"@en . . "No restrictions on access"@en . "2017 April 18" . "Susan Goldstein Snyder, on behalf of the United States Holocaust Memorial Museum Oral History Branch, conducted the oral history interview with Dr. John Otto Kessler on April 18, 2017."@en . "irn564929" . . . "No restrictions on use"@en . "2 digital files, WAV"@en . . . . "United States Holocaust Memorial Museum"@en . .