@inproceedings{inproceedings47979826,
title   = {Towards a better digital terrain model for South America},
author = {Lobianco, Maria Cristina Barboza and Blitzkow, Denizar and Green, C M and Daniels, R},
year = {1997},
publisher = {IAG},
booktitle   = {Congresso Brasileiro de Cartografia}
}