Ivanov V., Chichulin A. DOCUMENTARY SOURCES OF SOVIET STATE ADMINISTRATION IN THE FIELD OF COOPERATION IN 1918-1931: RETROSPECTIVE ANALYSIS // The Bulletin of the Volga Region Institute of Administration. 2023. Vol. 23, no. 2. P. 54–66. https://doi.org/10.22394/1682-2358-2023-2-54-66