00466naa#a2200157#i#450# EN\\bibl\90344 20241126125507.2 2221-3260 20240930b2024####ek#y0engy0150####ca RU Theoretical economics: developing the concept Journal article Yaroslavl Yaroslavl State Technical University 2024 7 с. Journal article local Gordeev Valery Alexandrovich chemintech.ru