Batyk, Iwona M., and Joanna Rakowska. “CONSUMER BEHAVIOR OF INHABITANTS OF KALININGRAD DISTRICT IN THE POLISH-RUSSIAN LOCAL BORDER TRAFFIC ZONE”. Acta Scientiarum Polonorum. Oeconomia 20, no. 4 (December 30, 2021): 5–13. Accessed September 24, 2022. https://aspe.sggw.edu.pl/article/view/2828.