Maldonaldo, Yazmin, et al. “Novel Genetic Optimization of Membership Functions of Fuzzy Logic for Speed Control of a Direct Current Motor for Hardware Applications in FPGAs”. Journal of Automation, Mobile Robotics and Intelligent Systems, vol. 4, no. 4, Jan. 2013, pp. 53-63, https://www.jamris.org/index.php/JAMRIS/article/view/141.