@INPROCEEDINGS {12517,
author={H.M. Marques and JCR Ribeiro and P. Marques and J. Rodriguez},
doi={},
booktitle={IEEE International Symp. on Personal, Indoor and Mobile Radio Commun  - PIMRC},
title={A security framework for cognitive radio IP based cooperative protocols},
year={2009},
month={September},
volume={  },
pages={2838-2842} 
}