1.		EN 50083 -5 : March 2001: cable networks for television signals, sound signals and interactive services: part 5: headed equipment / European Commitee for Electrothecnical Standardization Data Publicação: 2001 Tema: Normas
2.		EN 55013 : sound and television broadcast receivers and associated equipment: radio disturbance characteristics: limits and methods of measurement: (CISPR 13: 2001, modified) / European Committee for Electrotechnical Standardization Data Publicação: 2001 Tema: Normas