@article{articlea59892bd,
title   = {Geology and petropraphy of the Graciosa granites (southern Brazil)},
author = {Gualda, Guilherme Augusto Rosa and Vlach, Silvio Roberto Farias},
year = {2001},
doi = {10.1590/s0001-37652001000300023},
journal   = {Anais da Academia Brasileira de Ciências}
}