DIN CLC/TS 50459-5-2008
轨道交通.通信、发信号和处理系统.欧洲铁路交通管理系统.传动机接口.第5部分:符号
Railway applications - Communication, signalling and processing systems - European Rail Traffic Management System - Driver-Machine Interface - Part 5: Symbols; German version CLC/TS 50459-5:2005