DIN ETS 300133-7-1998 电磁兼容性和射频频谱物质(ERM).增强无线电信息系统(ERMES).第7部分:运行和维修特性; 英文版本 ETS 300133-7:1997
Electromagnetic compatibility and Radio spectrum Matters (ERM) - Enhanced Radio MEssage System (ERMES) - Part 7: Operation and maintenance aspects; English version ETS 300133-7:1997