Railway applications – Communication, signalling and processing systems – European Rail Traffic Management System – Driver-Machine Interface – Part 1: Ergonomic principles for the presentation of ERTMS/ETCS/GSM-R information; German version CLC/TS 50459-1:2005
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 01/01/2008

Railway applications – Communication, signalling and processing systems – European Rail Traffic Management System – Driver-Machine Interface – Part 1: General principles for the presentation of ERTMS/ETCS/GSM-R information; German version CLC/TS 50459-1:2015
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 10/01/2016