KISIEL, R.; WALINOWICZ, N. Problems of the Elderly in Rural Areas. Olsztyn Economic Journal, [S. l.], v. 13, n. 1, p. 33–44, 2018. DOI: 10.31648/oej.17. Disponível em: https://czasopisma.uwm.edu.pl/index.php/oej/article/view/17. Acesso em: 29 apr. 2024.