@article{bonomo_durán_2004,  title={Computational complexity of classical problems for hereditary clique-helly graphs},  volume={24},  ISSN={0101-7438},  url={https://doi.org/10.1590/S0101-74382004000300006},  DOI={10.1590/S0101-74382004000300006},  number={3},  journal={Pesquisa Operacional},  publisher={Sociedade Brasileira de Pesquisa Operacional},  author={Bonomo, Flavia and Durán, Guillermo},  year={2004},  month={Sep},  pages={435–443} }