@inproceedings{inproceedings95811948,
title   = {Failure modes of rock mass models with non-persistent discontinuities},
author = {Aguiar, Cibele Cláuver de and Celestino, Tarcísio Barreto and Bortolucci, Antônio Airton},
year = {1998},
publisher = {EPUSP},
booktitle   = {South American Conference in Rock Mechanics}
}