00684naa#a2200181#i#450# EN\\bibl\70063 20240518090249.6 1999-9917 20230912b2023####ek#y0engy0150####ca RU Provision of food on the basis of long-term supply contracts for public procurement Journal article Ryazan Academy of the FPS of Russia 2023 6 с. Journal article local Производство продукции и услуг по отраслям народного хозяйства. 338.4 Sedyh Vladimir Aleksandrovich Rodionov Alexey Vladimirovich mcp.editorum.ru