Can hybrid vehicles reduce the pollutant emission in urban environments?
Catalytic exhaust emission control system for city buses with liquified petroleum gas engines
Chancen für das Elektrofahrzeug in Bayern - Situation und Ausblick
Charakterisierung der Partikelemission von Nutzfahrzeugmotoren
Choosing between tram and metro in Hong Kong — utility, affect and demographics
City centre regeneration by removing motorways: impacts on mobility and urban life
City—port relationships in Malaga, Spain: effects of the new port proposals on urban traffic