@INPROCEEDINGS {363,
author={N.B.C. Carvalho and J. C. Pedro},
doi={},
booktitle={Conf. on Telecommunications  - ConfTele},
title={A New Active Device Model Approximation Suitable for a Nonlinear Frequency Domain Simulator},
year={1999},
month={April},
volume={1},
pages={187-190} 
}