8th International Zurich Symposium and Technical Exhibition on Electromagnetic Compatibility, Zurich, Zurich, Switzerland. IEEE: pp. 531-536; ISBN 978-1-5090-3193-1
Images of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society, Seattle, WA, USA. volume 4; IEEE: pp. 1134-1135
1989,
Gopala Krishna G, Anwar Ali AK, Mohan DR, Ahmad A