@inproceedings{inproceedings80cac804,
title   = {Environmental impact caused by exploitation of natural resources in the metropolitan region of João Pessoa, Paraiba state, northeast Brazil},
author = {Tuma, Lanusse Salim Rocha and Soares, Lindolfo and Hennies, Wildor Theodoro and Fujimura, Fernando and Gopinath, Tumkur Rajarao},
year = {2003},
publisher = {The Australasian Institute of Mining and Metatallurgy},
booktitle   = {International Symposium on Mine Planning & Equipment Selection}
}