Semiconductor devices - Part 16-3: Microwave integrated circuits - Frequency converters (IEC 60747-16-3:2002 + A1:2009); German version EN 60747-16-3:2002 + A1:2009— 46 стр.
Standard data element types with associated classification scheme - Part 1: Definitions - Principles and methods (IEC 61360-1:2017); German version EN 61360-1:2017— 181 стр.