EN 61580-7 : methods of measurement for waveguides: part 7: graphical method for the determination of waveguide performance: (IEC 1580-7: 1996) / European Commitee for Electrothecnical Standardization
EN 61580-8 : methods of measurement for waveguides: part 8: waveguide power holding capability: (IEC 1580-8: 1996) / European Commitee for Electrothecnical Standardization
Postal services [documento electrónico] : hybrid mail: document type definitions for customer to operator: a common set of default tags: ENV 14014: July 2001 / European Committee for Standardization
Working procedures for the technical assembly and its working bodies of european / European Telecommunications Standards Institute