P. A. Medina Wintaco, S. M. Tellez, and O. F. Prias, “End-use energy indicator approach to improve energy performance at the National University of Colombia Bogotá, under the parameters of the ISO 50001 standard”, Trans. Energy Syst. Eng. Appl., vol. 3, no. 2, pp. 1–14, Oct. 2022.