@INPROCEEDINGS {3704,
author={T. Brandão and M.P. Queluz and A. J. Rodrigues},
doi={},
booktitle={Conf. on Telecommunications  - ConfTele},
title={Improving spread spectrum based image watermarking through non-binary channel coding},
year={2001},
month={April},
volume={--},
pages={83-87} 
}
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