. . "Letter of the Holocaust survivor Riva Ostrov, born in Kaunas, written in Denver to the New York Forverts editorial board on her experiences in Stutthof and on a death march, 01 April 1950"@eng . "Letter of the Holocaust survivor Riva Ostrov, born in Kaunas, written in Denver to the New York Forverts editorial board on her experiences in Stutthof and on a death march, 01 April 1950"@eng . .