Carneiro , Diego, and Guilherme Irffi. “The Dynamic Intensity of CO2 Emissions: Empirical Evidence for the 20th Century”. Brazilian Journal of Political Economy 37, no. 4 (October 1, 2017): 772-788. Accessed April 29, 2024. https://centrodeeconomiapolitica.org.br/repojs/index.php/journal/article/view/159.