WARŻAŁA, R. Model of a Regional Business Cycle Indicatorforthe Province of Warmia and Mazury. Olsztyn Economic Journal, [S. l.], v. 7, n. 2, p. 249–271, 2012. DOI: 10.31648/oej.3427. Disponível em: https://czasopisma.uwm.edu.pl/index.php/oej/article/view/3427. Acesso em: 18 may. 2024.