@article{Serpa_2008, title={GeoTextos}, volume={3}, url={https://periodicos.ufba.br/index.php/geotextos/article/view/3054}, DOI={10.9771/1984-5537geo.v3i0.3054}, journal={GeoTextos}, author={Serpa, Angelo}, year={2008}, month={set.} }