@article{cintra_2012,  title={O mapa das cortes e as fronteiras do Brasil},  volume={18},  ISSN={1982-2170},  url={https://doi.org/10.1590/S1982-21702012000300005},  DOI={10.1590/S1982-21702012000300005},  number={3},  journal={Boletim de Ciências Geodésicas},  publisher={Universidade Federal do Paraná},  author={Cintra, Jorge Pimentel},  year={2012},  month={Jul},  pages={421–445} }