Gómez Molina, Nelson, and Sergio Raúl Rivera Rodríguez. “Frequency Regulation in Power Systems That Integrate Wind Energy Sources through a Pi Controller and Inertial Emulation”. Ingeniería Solidaria, vol. 13, no. 23, Sept. 2017, pp. 7-28, https://doi.org/10.16925/in.v23i13.1981.