Lopez Santana, Eduyn Ramiro, and Jose de Jesus Romero Carvajal. “A Hybrid Column Generation and Clustering Approach to the School Bus Routing Problem with Time Windows”. Ingeniería 20, no. 1 (March 4, 2015): 111–127. Accessed March 28, 2024. https://revistas.udistrital.edu.co/index.php/reving/article/view/8199.