@article{guimarães_cunha_2023,  title={MATH-HEURISTIC FOR THE CAPACITATED TWO-ECHELON VEHICLE ROUTING PROBLEM},  volume={43},  ISSN={0101-7438},  url={https://doi.org/10.1590/0101-7438.2023.043.00270829},  DOI={10.1590/0101-7438.2023.043.00270829},  journal={Pesquisa Operacional},  publisher={Sociedade Brasileira de Pesquisa Operacional},  author={Guimarães, José Carlos Fontoura and Cunha, Claudio Barbieri da},  year={2023},  pages={e270829} }