Border functions as a factor of development of border regions and the formation of cross-border regions
... behavioural approach in the analysis of border effects // Paper prepared for the 37th European Congress of the European Regional Science Association, Rome, Italy, Aug. 26—29, 1997. Rome, 1997.
Osmolovskaya L.
border regions, cross-border regions, the state border, the border function
45-54
The intensity of population movements through the Russian- Polish border after the suspension of the local border traffic mechanism: 2016 outcomes
...
https://www.strazgraniczna.pl/pl/granica/statystyki-sg/2206,Statystyki-SG.html
(дата обращения: 12.02.2017).
Gumenyuk I.
the Kaliningrad region, the Republic of Poland, the local border traffic, cross-border cooperation, mutual crossing of the state border
15-23