@INPROCEEDINGS {938,
author={J.   Nascimento and J. S. Marques},
doi={},
booktitle={Ibero-American Symp. on Pattern Recognition - SIARP},
title={An Algorithm for the Estimation of 3D Surfaces Using Competitive Learning},
year={2000},
month={September},
volume={I},
pages={139-146} 
}