Flegl, Martin, Sebastián Campos Díaz, and Isaac Sánchez-Juárez. “Performance Analysis of the Pemex Refineries, 2000-2019”. Panorama Económico 17, no. 34 (November 25, 2021): 225–245. Accessed August 12, 2026. https://revistapanoramaeconomico.mx/index.php/PE/article/view/89.