@article{braga_barone_galvão_2000,  title={Identifying carcinogenic activity of methylated and non-methylated polycyclic aromatic hydrocarbons (PAHs) through electronic and topological indices},  volume={30},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332000000300013},  DOI={10.1590/S0103-97332000000300013},  number={3},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Braga, R.S. and Barone, P.M.V.B. and Galvão, D.S.},  year={2000},  pages={560–568} }