@inproceedings{inproceedings394ccdb7,
title   = {Limestone mining for agricultural purposes in Brazil},
author = {Barbosa, Elvis de Souza and Hennies, Wildor Theodoro and Soares, Lindolfo},
year = {2009},
publisher = {The Reading Matrix Inc},
booktitle   = {International Symposium on Mine Planning and Equipment Selection}
}