00554naa#a2200157#i#450# EN\FGKOU VO SPBU MVD ROSSII\bibl\98539 20250719142338.6 2227-7226 20250713b2025####ek#y0engy0150####ca RU Illegal migration as a threat to national security of the Russian Federation Journal article St. Petersburg SAINT-PETERSBURG UNIVERSITY OF THE MINISTRY OF INTERNAL AFFAIRS OF THE RUSSIAN FEDERATION 2025 5 с. Journal article local vestnikspbmvd.ru