Bessa, C. F. M. de, T. B. S. Moreira, M. de P. P. Barata, and F. A. R. Soares. “Determinative Common Factors of Currency and Financial Crisis”. Brazilian Journal of Political Economy, vol. 30, no. 4, Oct. 2010, pp. 604-2, https://centrodeeconomiapolitica.org/repojs/index.php/journal/article/view/461.