Trojanowska-Strzęboszewska M. Strategies of border control – determinants of changes and their impact on the nature of contemporary political borders. Bord. Reg. Stud. [Internet]. 2018 Nov. 2 [cited 2024 Nov. 2];6(2):83-102. Available from: https://czasopisma.uni.opole.pl/index.php/p/article/view/53