. . "10 digital file, WMA"@en . . "2005 July" . . . "Oral history interview with Kogan"@en . "irn85646" . . "No restrictions on access"@en . . . "Sankt-Peterburgskai︠a︡ Iudaika Proekt, Evropeĭskiĭ universitet v Sankt-Peterburge"@en . "The European University at St. Petersburg contributed the St. Petersburg Judaica Project to the United States Holocaust Memorial Museum Archives via the United States Holocaust Museum International Archives Project in June 2009."@en . "No restrictions on use"@en . .