Fogel, Robert William. “Economic Growth, Population Theory, and Physiology: The Bearing of Long-Term Processes on the Making of Economic Policy”. Revista Universidad EAFIT 30, no. 93 (August 16, 2012): 21–49. Accessed November 11, 2026. https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/1413.