WITKOWSKI, P. Poland in the Schengen Agreement – Opinion from the Borderland. Regional Barometer. Analyses & Prognoses, [S. l.], n. 2 (16), p. 71–81, 2009. DOI: 10.56583/br.1415. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1415. Acesso em: 29 jun. 2024.