Martine, George, and Clélio Campolina Diniz. “Economic and Demographic Concentration in Brazil: Recent Inversion of the Historical Pattern”. Brazilian Journal of Political Economy 11, no. 3 (July 1, 1991): 442-462. Accessed May 1, 2024. https://centrodeeconomiapolitica.org/repojs/index.php/journal/article/view/1475.