Collection Abram Saulovich Kagan Papers, 1909-1952 Online Repository Columbia University: Rare Book & Manuscript Library
Collection Adol'f Markovich Lazarev Manuscript, 1964 Repository Columbia University: Rare Book & Manuscript Library
Collection Georgii Petrovich Fedotov Papers, 1907-1957 Repository Columbia University: Rare Book & Manuscript Library
Collection Nikolai Aleksandrovich Berdiaev Letters, 1923-1947 Repository Columbia University: Rare Book & Manuscript Library
Collection Semen Liudvigovich Frank Papers, 1898-1975 Repository Columbia University: Rare Book & Manuscript Library
Collection Vasilii Petrovich Nikitin Papers, 1859-1960 Repository Columbia University: Rare Book & Manuscript Library
Collection Zernov Family Papers, 1919-1976 Repository Columbia University: Rare Book & Manuscript Library
