Powęska H. THE SHARE OF CROSS-BORDER SHOPPING IN POLAND’S TRADE TURNOVER OF FOOD PRODUCTS WITH NEIGHBOURING COUNTRIES ON THE EUROPEAN UNION EASTERN BORDER IN 2013–2018. aspe [Internet]. 2021Jan.3 [cited 2024May18];19(4):103-12. Available from: https://js.wne.sggw.pl/index.php/aspe/article/view/.46