@INPROCEEDINGS {20403,
author={S.M.M. Faria and P.A. Assunção and V. Silva and L. V. Sá},
booktitle={Encontro Nacional de Engenharia Eléctrica - ENDIEL},
title={Um Codec para Videotelefonia},
year={1989},
month={April},
volume={ },
pages={ - } 
}
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