@article{gualda_vlach_2001,  title={Geology and petrography of the graciosa granites (Southern Brazil)},  volume={73},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652001000300023},  DOI={10.1590/S0001-37652001000300023},  number={3},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={GUALDA, GUILHERME A. R. and VLACH, SILVIO R. F.},  year={2001},  month={Sep},  pages={467–467} }