8th International Zurich Symposium and Technical Exhibition on Electromagnetic Compatibility, Zurich, Zurich, Switzerland. IEEE: pp. 531-536; ISBN 978-1-5090-3193-1
1989,
Gopala Krishna G, Anwar Ali AK, Mohan DR, Ahmad A
International Telecommunication Union (ITU),
Directives concerning the protection of telecommunication lines against harmful effects from electric power and electrified railway lines, VI: 1-64, ISBN 978-92-61-04071-0
1989,
Lipson AH, Webster WS, Brown-Woodman PD, Osborn RA