@article{machado_zaher_2010,  title={Pitfalls of artificial grouping and stratification of scientific journals based on their Impact Factor: a case study in Brazilian Zoology},  volume={27},  ISSN={1984-4670},  url={https://doi.org/10.1590/S1984-46702010000400002},  DOI={10.1590/S1984-46702010000400002},  number={4},  journal={Zoologia (Curitiba)},  publisher={Sociedade Brasileira de Zoologia},  author={Machado, Fábio A. and Zaher, Hussam},  year={2010},  month={Aug},  pages={493–502} }