@inproceedings{inproceedings609f0c3b,
title   = {Oil sands of São Paulo State, Brazil and la Brea de Champi, Peru: a geological perspective},
author = {Santos, Paulo Roberto dos and Kramers, J. W. and Touzett, P.},
year = {1985},
booktitle   = {International Conference on Heavy Crude and Tar Sands}
}