@inproceedings{inproceedings178e0a54,
title   = {Fracture toughness determination for some brazilian rocks},
author = {Albuquerque, Maria da Consolação Fonseca de and Bortolucci, Antônio Airton and Souza, Benedito Osvaldo de},
year = {1998},
publisher = {EPUSP},
booktitle   = {South American Conference in Rock Mechanics}
}