@INPROCEEDINGS {4327,
author={C. F. Fernandes and A. Serra and A. L. Ribeiro and J. T. Pereira},
doi={},
booktitle={Jornadas Hispano Lusas de Ingenieria Eléctrica},
title={A simple Model for a graded-index separate confinement heterostructure-single quantum well laser},
year={1993},
month={July},
volume={II},
pages={697-706} 
}