List of ship stations and maritime mobile service identity assignments / International Telecommunication Union
CISPR 16-1-2 [documento eletrónico] : amendment 1; : specification for radio disturbance and immunity measuring apparatus and methods; : part 1-2; : radio disturbance and immunity measuring apparatus; : coupling devices for conducted disturbance measurements / International Electrotechnical Commission
World radio TV handbook 2018 : the directory of global broadcasting / ed. WRTH Publications
2018 Super frequency list : broadcast and utility / ed. Klingenfuss Publications
2018 Shortwave frequency guide : worldwide broadcast and utility radio stations / ed. Klingenfuss Publications
The political spectrum : the tumultuous liberation of wireless technology, from Herbert Hoover to the smartphone / Thomas Winslow Hazlett