Expósito-Izquierdo, Christopher, Belén Melián-Batista, and José Marcos Moreno-Vega. 2014. “Optimization Model and Heuristic Approach for Blocks Retrieval Processes in Warehouses”. Proceedings of the International Conference on Automated Planning and Scheduling 24 (1):111-19. https://doi.org/10.1609/icaps.v24i1.13634.