. "Diane Plotkin donated the oral history interview with Leo Laufer to the United States Holocaust Memorial Museum in January 2012. The recording is part of a collection of interviews produced by Dr. Plotkin for her graduate dissertation research and book Sisters in Sorrow: Voices of Care in the Holocaust."@en . . . . "Restrictions on use. Restrictions may exist. Contact the Museum for further information: reference@ushmm.org\n\nCopyright Holder: Diane Plotkin Ph.D."@en . "No restrictions on access"@en . "13 sound cassette (60 min.),"@en . . . . "irn76177" . "Oral history interview with Leo Laufer"@en . .