The following publications are possibly variants of this publication:
- The Multi-Commodity One-to-One Pickup-and-Delivery Traveling Salesman Problem: A MatheuristicInmaculada Rodríguez Martín, Juan José Salazar González. inoc 2011: 401-405 [doi]
- The One-Commodity Pickup-and-Delivery Travelling Salesman ProblemHipólito Hernández-Pérez, Juan José Salazar González. aussois 2003: 89-104 [doi]
- The one-commodity pickup-and-delivery traveling salesman problem: Inequalities and algorithmsHipólito Hernández-Pérez, Juan José Salazar González. networks, 50(4):258-272, 2007. [doi]
- A hybrid heuristic approach for the multi-commodity one-to-one pickup-and-delivery traveling salesman problemInmaculada Rodríguez Martín, Juan José Salazar González. heuristics, 18(6):849-867, 2012. [doi]
- The multi-commodity pickup-and-delivery traveling salesman problemHipólito Hernández-Pérez, Juan José Salazar González. networks, 63(1):46-59, 2014. [doi]