. "3 videocasettes (Betacam SP), sound, color ; 1/2 in."@en . "2001 June 26" . . . . "Oral history interview with Sophie Koper"@en . . . . "irn508494" . . "United States Holocaust Memorial Museum"@en . "No restrictions on access"@en . "No restrictions on use"@en . . . "The United States Holocaust Memorial Museum Oral History Branch conducted the interview with Sophie Koper on June 26, 2001. The United States Holocaust Memorial Museum Archives received the tapes in July 2001."@en . .