@inproceedings{inproceedings124598e2,
title   = {Rock mechanics in ore extraction palnning - a case study},
author = {Silvio, E and Ayres da Silva, Lineu Azuaga},
year = {1994},
publisher = {Abms},
booktitle   = {Congresso Brasileiro de Mecanica dos Solos e Engenharia de Fundacoes}
}