Letters of Shmaruk
129 letters in Russian, 1941 – 1945.
Archive is specified, there is biographical information about the author.
Letters of Shnaiderman
3 letters in Russian.
Archive is not specified, there is no information about the author.
Letters of Shor
11 letters in Russian, 1943.
Archive is not specified, there is no information about the author.
Letters of Yanover
9 letters in Russian, 1943.
Archive is specified, there is no information about the author.
Letters of Yagupklsky
7 letters in Russian, 1941 – 1943.
Archive is specified, there is biographical information about the author.