International Telecommunication Union (ITU),
Directives concerning the protection of telecommunication lines against harmful effects from electric power and electrified railway lines: 1-44
International Telecommunication Union (ITU),
Directives concerning the protection of telecommunication lines against harmful effects from electric power and electrified railway lines: 1-84, ISBN 978-92-61-04091-8
1989,
Lipson AH, Webster WS, Brown-Woodman PD, Osborn RA