@INPROCEEDINGS {5468,
author={S. Costa and C. Cardeira and J. Pargana and F. Dionísio and P.A. Santos},
doi={},
booktitle={IEEE International Conf. on Emerging Technologies and Factory Automation  - ETFA},
title={Systems and signals online question and grading},
year={2005},
month={September},
volume={-},
pages={41-47} 
}