BILCZAK, W.; BILCZAK, M. Social Security of Population as a Basis for Stable Growth of Border Regions. Olsztyn Economic Journal, [S. l.], v. 11, n. 4, p. 331–342, 2016. DOI: 10.31648/oej.2936. Disponível em: https://czasopisma.uwm.edu.pl/index.php/oej/article/view/2936. Acesso em: 23 may. 2022.