00489naa#a2200157#i#450# EN\\bibl\100400 20250627190339.5 1998-6785 20250626b2025####ek#y0engy0150####ca RU "20×10 Policy" as a New Stage of Regional Development in the DPRK Journal article Vladivostok Vladivostok State University 2025 7 с. Journal article local Zakharova Lyudmila Vladimirovna ojkum.editorum.ru