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Viktor O, Korsakova St R. SOME PROBLEMS OF OPTIMAL MANAGEMENT OF ECONOMIC SYSTEMS: SOME PROBLEMS OF OPTIMAL MANAGEMENT OF ECONOMIC SYSTEMS. JSAR [Internet]. 2023 Mar. 9 [cited 2024 Nov. 21];6(1):100-5. Available from: https://jsar.ftn.shu.bg/index.php/jsar/article/view/145