@article{buriol_figueiredo_resende_uchoa_2020,  title={THE GUIDE TO NP-COMPLETENESS IS 40 YEARS OLD: AN HOMAGE TO DAVID S. JOHNSON},  volume={40},  ISSN={0101-7438},  url={https://doi.org/10.1590/0101-7438.2020.040.00236329},  DOI={10.1590/0101-7438.2020.040.00236329},  journal={Pesquisa Operacional},  publisher={Sociedade Brasileira de Pesquisa Operacional},  author={Buriol, Luciana S. and Figueiredo, Celina and Resende, Mauricio G. C. and Uchoa, Eduardo},  year={2020},  pages={e236329} }