D. García Callejas, “THE AUTOMOTIVE LEAD KUZNETS CURVE: AN ANALYSIS OF THE THEORY AND EMPIRICS”, Semest. Econ., vol. 9, no. 18, pp. 125–132, Dec. 2006, Accessed: Apr. 17, 2026. [Online]. Available: https://revistas.udem.edu.co/index.php/economico/article/view/882