@article{câmara_monteiro_paiva_gomes_velho_2000, title={Towards a unified framework for spatial data models}, volume={7}, ISSN={0104-6500}, url={https://doi.org/10.1590/S0104-65002000000200003}, DOI={10.1590/S0104-65002000000200003}, number={1}, journal={Journal of the Brazilian Computer Society}, publisher={Sociedade Brasileira de Computação}, author={Câmara, Gilberto and Monteiro, Antônio Miguel Vieira and Paiva, João Argemiro and Gomes, Jonas and Velho, Luiz}, year={2000}, pages={17–25} }