@inproceedings{inproceedingsc4c16c7d,
title   = {Environmental engineering problems at the ipueira iii underground chrome mine , bahia, brazil},
author = {Eston, Sérgio Médici de and Hamza, V M and Sobrinho, J R and Oliveira, W L},
year = {1993},
publisher = {Society for Mining Metallurgy and Exploration},
booktitle   = {U.S. Mine Ventilation Symposium}
}