@article{martínez_alvarez-valdes_parreño_2015, title={A GRASP ALGORITHM FOR THE CONTAINER LOADING PROBLEM WITH MULTI-DROP
                  CONSTRAINTS}, volume={35}, ISSN={0101-7438}, url={https://doi.org/10.1590/0101-7438.2015.035.01.0001}, DOI={10.1590/0101-7438.2015.035.01.0001}, number={1}, journal={Pesquisa Operacional}, publisher={Sociedade Brasileira de Pesquisa Operacional}, author={Martínez, D. Alvarez and Alvarez-Valdes, R. and Parreño, F.}, year={2015}, month={Jan}, pages={1–24} }