TY - GEN AU - United Nations Environment Programme PY - 2012 SN - Not Available UR - https://wedocs.unep.org/handle/20.500.11822/21551 LA - English KW - sulphur KW - fuel KW - motor vehicle emission TI - Opening the Door to Cleaner Vehicles in Developing and Transition Countries: The Role of Lower Sulphur Fuels - Summary M3 - Policy brief ER -