15th International Zurich Symposium and Technical Exposition on Electromagnetic Compatibility, Zurich, Zurich, Switzerland. IEEE: pp. 149-154; ISBN 978-1-5090-3197-9
4th International Conference on Antenna Theory and Techniques (Cat. No.03EX699), Sevastopol, Ukraine. volume 2; IEEE: pp. 807-808; ISBN 978-0-7803-7881-0