DIN EN 15746-4:2021-05 Railway applications - Track - Road-rail machines and associated equipment - Part 4: Technical requirements for running, travelling and working on urban rail; German version EN 15746-4:2020
2021DIN EN 15746-4:2021 Railway applications - Track - Road-rail machines and associated equipment - Part 4: Technical requirements for running, travelling and working on urban rail; German version EN 15746-4:2020
2016DIN EN 15746-4:2016 Railway applications - Track - Road-rail machines and associated equipment - Part 4: Technical requirements for running, travelling and working on urban rail; German and English version prEN 15746-4:2015