Collection Georgii Pavlovich Benningsen Papers, 1917-1962 Repository Columbia University: Rare Book & Manuscript Library
Collection Nikolai Aleksandrovich Pal'chevskii Papers, 1913-1954 Repository Columbia University: Rare Book & Manuscript Library
Collection Vladimir L'vovich Burtsev Papers, 1920-1940 Repository Columbia University: Rare Book & Manuscript Library
Collection Vladimir Nikolaevich Unkovskii Papers, 1920-1958 Repository Columbia University: Rare Book & Manuscript Library