@INPROCEEDINGS {7128,
author={J. Girão and M. Liebsch and R.  Aguiar and S. Sargento and A. Sarma},
doi={},
booktitle={Wireless World Research Forum},
title={Flexible identity scheme for 4G Presentation},
year={2004},
month={November},
volume={N/A},
pages={N/A-N/A} 
}