@inproceedings{inproceedingsf2ed6f2b,
title   = {Arenito botucatu silicificado: caracterizacao, explotacao e usos},
author = {Paraguassu, Antenor Braga and Rodrigues, José Eduardo and Gandolfi, Nilson and Zuquette, Lázaro Valentin and Portilio, E. Z. F.},
year = {1993},
publisher = {EPUSP},
booktitle   = {Congresso Italo-Brasileiro de Engenharia de Minas}
}