00581naa#a2200169#i#450# EN\\bibl\111749 20260113030034.2 2221-3260 20251130b2025####ek#y0engy0150####ca RU The impact of changes in the external economic environment on the functioning of the Russian metallurgical complex Journal article Yaroslavl Yaroslavl State Technical University 2025 11 с. Journal article local Kon'kov Maksim Nikolaevich Noskov Vladimir Anatol'evich chemintech.ru