00621naa#a2200181#i#450# EN\\bibl\132426 20260804053507.2 2782-1927 20260628b2026####ek#y0engy0150####ca RU Modern models of international competitiveness of Big Tech corporations: internal drivers versus external shocks Journal article Yaroslavl Yaroslavl State Technical University 2026 11 с. Journal article local Rastvortseva Svetlana N. Tyushkevich Yuliya Aleksandrovna Salushkina Zlata Sergeevna jraic.com