@inproceedings{inproceedings32ccfe1c,
title   = {Plugs fonoliticos no graben assunção-sapucai, paraguai centro-oriental},
author = {Censi, Paolo and Comin-Chiaramonti, P. and De Min, Angelo and Gomes, Celso B. and Orué, Delio and Petrini, Riccardo and Piccirillo, Enzo Michele and Velázquez Fernandez, Victor},
year = {1991},
publisher = {Sbgq/Sociedade Geologica de Portugal/IG-USP},
booktitle   = {Congresso Brasileiro de Geoquímica}
}