@inproceedings{inproceedings037f2f4c,
title   = {Present conditions and proposals for sustainable tourism in the Andre Lopes karsti area, Brazil},
author = {Macedo, Arlei Benedito and Gonçales, Silvia Regina Benites},
year = {2004},
publisher = {IUGS},
booktitle   = {International Geological Congress}
}