00568naa#a2200169#i#450# EN\\bibl\37213 20240507070021.2 2307-1400 20200422b2020####ek#y0engy0150####ca RU Interregional migration exchange as a threat to the economic security of the region Journal article Saint-Petersburg Strategy of the Future 2020 4 с. Journal article local Статистика. Демография. Социология. 31 Lipatova L. N. futurepubl.ru