| 1. | World radio TV handbook 2003 : the directory of international broadcastingData Publicação: 2003 Tema: Comunicações Eletrónicas |  | |
| 2. | EN 55020/A1 : sound and television broadcast receivers and associated equipment: immunity characteristics: limits and methods of measurement: (CISPR 20: 2002/A1: 2002) / European Committee for Electrotechnical StandardizationData Publicação: 2003 Tema: Normas | | |