. . . . "Jack Zyroff donated the interview with his mother Sonia Zyroff to the United States Holocaust Memorial Museum in October 2019. Sonia Zyroff's grandson Daniel Riff provided the recording to the Museum's Oral History branch."@en . "Oral history interview with Sonia Zyroff"@en . "No restrictions on access"@en . "3 digital files, MPEG-4"@en . . . . . "No restrictions on use"@en . . "irn712577" .