@article{lucena_freitas_corso_soares_2003,  title={Anisotropy and percolation threshold in a multifractal support},  volume={33},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332003000300030},  DOI={10.1590/S0103-97332003000300030},  number={3},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Lucena, L. S. and Freitas, J. E. and Corso, G. and Soares, R. F.},  year={2003},  month={Sep},  pages={637–640} }