@article{barbieri_campos_macedo_carvalho_santos_2023,  title={URBAN GRADIENT},  volume={22},  ISSN={1984-2201},  url={https://doi.org/10.4215/rm2023.e22008},  DOI={10.4215/rm2023.e22008},  journal={Mercator (Fortaleza)},  publisher={Universidade Federal do Ceará},  author={Barbieri, A.F and Campos, M.B and Macedo, D.R and Carvalho, R.C and Santos, R.O},  year={2023},  pages={e22008} }