@inproceedings{inproceedingsb7c03292,
title   = {Rock characterization and stress analysis at Baltar mine, Brazil},
author = {Sansone, Eduardo César and Ayres da Silva, Lineu Azuaga},
year = {1997},
publisher = {A A Balkema},
booktitle   = {International Symposium on Mine Planning and Equipment Selection}
}