00509naa#a2200157#i#450# EN\\bibl\126456 20260818115930.2 1998-6785 20260630b2026####ek#y0engy0150####ca RU Cross-Border Interaction of Russian Regions of Inner Asia with Mongolia: Current State and Prospects Journal article Vladivostok Vladivostok State University 2026 10 с. Journal article local Badaraev Damdin D vvgu.editorum.ru