@INPROCEEDINGS {13071,
author={M. Ara and H. Reboredo and F. Renna and M. Rodrigues },
doi={},
booktitle={IEEE International Conference on Communications - ICC},
title={Power Allocation Strategies For OFDM Gaussian Wiretap Channels With a Friendly Jammer},
year={2013},
month={June},
volume={xx},
pages={3413-3417} 
}