Berbey-Alvarez, Aranzazu, Juan De Dios Sanz Bobi, Felix Ramón Henriquez Espinosa, Cesar Díaz, and Abdiel Rodriguez. “Design of a Preventive Maintenance Plan for Escalators of Panama Metro Line 1”. LACCEI 1, no. 14 (July 27, 2026). Accessed September 24, 2026. https://proceedings.laccei.org/index.php/laccei/article/view/6829.