00669naa#a2200181#i#450# EN\\bibl\72845 20240521004943.2 2073-5537 20231226b2023####ek#y0engy0150####ca RU Closed supply chains formation problems in a cyclical economy Journal article Astrakhan Astrakhan State Technical University 2023 4 с. Journal article local Экономическая политика. Управление и планирование в экономике. 338.2 Bukrinskaya Elvira Mansurovna Lipatova Olga Nikolaevna vestnik.astu.org