Framework recommendation on urban low-floor line-service buses operated electrically (electric bus) : supplement to VDV recommendation 230 / VDV, die Verkehrsunternehmen ; overall revision Committee on Motoring ; list of authors Sebastian Menges, RNV, Mannheim, Holger Ben Zid, SWS, Solingen, Wolfgang Hubenthal, FFG, Hamburg, Jürgen Lange, VCDB, Dresden, Robert Roch, DVB, Dresden, Steffen Raff, SSB, Stuttgart, Andre Kranz, VHH, Hamburg, Karsten Walter, Vestische, Herten, Jens Olaf Schumacher, SWS, Solingen, Phillipp Knieling, BBG, Eberswalde, Markus Wachter, WL, Vienna, Jens Schmitz, VDV, Cologne Minh-Thuy Truong, VDV, Berlin