@INPROCEEDINGS {656,
author={J. M. Dias Pereira and O. Postolache and P.M. Girão and H.  Ramos},
doi={},
booktitle={IMEKO TC4 Symp.},
title={Minimising Errors due to Non-Simultaneous Sampling of Voltage and Current in Digital Power Measurement Systems},
year={2002},
month={September},
volume={1},
pages={307-310} 
}