@article{de marchi_2014,  title={Cell phones: a digital cartography of São Paulo},  volume={6},  ISSN={2175-3369},  url={https://doi.org/10.7213/urbe.06.001.SE05},  DOI={10.7213/urbe.06.001.SE05},  number={1},  journal={urbe. Revista Brasileira de Gestão Urbana},  publisher={Pontifícia Universidade Católica do Paraná},  author={De Marchi, Polise Moreira},  year={2014},  month={Jan},  pages={13–85} }