Migration in the Kaliningrad region reflected in the 1989—2015 censuses and microcensuses
... countries have been increasing in recent decades. At the same time, the contribution of the natives of Belarus and Ukraine to the region's population is rapidly declining, largely due to the change of generations having a different migration history.
Abylkalikov, S. I., Sazin, V. S.
migration flows, migrant stock, migration, census, microcensus, repatriation programme