EN 61580-9 : methods of measurement for waveguides: part 9: reflection coefficient at rectangular waveguide interfaces: (IEC 1580-9: 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
Report from the SRC on public networks : final version: approved August 1992 / European Telecommunications Standards Institute
ETSI documentation service : the official ETSI deliverables CD-ROMs / European Telecommunications Standards Institute