@INPROCEEDINGS {7563,
author={A. Ribeiro and T. Costa and R. Gama and R. Neves and N. Horta},
doi={},
booktitle={Conf. on Telecommunications  - ConfTele},
title={A bandgap Voltage Reference with Only CMOS Transistors},
year={2009},
month={May},
volume={I},
pages={69-72} 
}