@techreport{R098.008,
author={Veelaert, P. and Bogaerts, W.},
title={Design of an ultrasonic potential field sensor},
booktitle={Technical report, Univ. of Ghent, Dept. Elis},
year={1998},
month={6},
number={DG98-07},
pages={1-14},
address={Gent},
}