DIN EN 15877-2:2014 轨道交通.铁路车辆标记. 第2部分:车厢, 动力装置, 机车以及轨道交通设备的外部标记; 德文版本EN 15877-2-2013
Railway applications - Markings of railway vehicles - Part 2: External markings on coaches, motive power units, locomotives and on track machines; German version EN 15877-2:2013