Phasing out diesel locomotives: Deutsche Bahn will rely on biofuel for long - The Limited Times
File:Diesel locomotive V60 1184 of the Vulkan-Eifel-Bahn in Trier 25 January 2016.jpg - Wikimedia Commons
Deutsche Bahn to launch hydrogen train in 2024 | Basque Trade & Investment
Diesel locomotives of Class 218 of Deutsche Bahn AG in Memmingen train station, Stock Photo, Picture And Rights Managed Image. Pic. T54-2174327 | agefotostock
Deutsche Bahn to replace diesel trains with hydrogen alternatives; Green Hydrogen Systems to power the new