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 [Internet]. 2023 Feb. 15 [cited 2026 Nov. 8];23(2):54-66. Available from: https://volga-institute.owebs.ru/article/view/18430