Martínez-Vega, Daniel A., Laura Cruz-Reyes, Nelson Rangel-Valdez, Claudia Gómez Santillán, Patricia Sánchez-Solís, and Mercedes Pérez Villafuerte. “Project Portfolio Selection With Scheduling: An Evolutionary Approach”. International Journal of Combinatorial Optimization Problems and Informatics 10, no. 1 (August 10, 2018): 25-31. Accessed November 14, 2018. https://ijcopi.org/index.php/ojs/article/view/113.