TRAVASSOS, F. C. Price filter: a sectoral profit tracking algorithm. Brazilian Journal of Political Economy, [S. l.], v. 15, n. 4, p. 536-546, 1995. DOI: 10.1590/0101-31571995-0851. Disponível em: https://centrodeeconomiapolitica.org/repojs/index.php/journal/article/view/1257. Acesso em: 6 may. 2024.