14th International Zurich Symposium and Technical Exposition on Electromagnetic Compatibility, Zurich, Zurich, Switzerland. IEEE: pp. 1-6; ISBN 978-3-9521199-5-2
2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Istanbul, Turkey. volume 4; IEEE: pp. 3913-3916; ISBN 978-0-7803-7211-5