5IEA. Transport,energy and CO2:moving toward sustainability[M].Paris:OECD Publishing,2009.
6Maja I P,Mckinnon,Alan C. Forecasting the carlon footprint of road freight transport in 2020[J].International Journal of Production Econonics,2010,(01):31-42.
7Demir E,Bekta T,Laporte G. A comparative analysis of several vehicle emission models for road freight transportation[J].Transportation Research:Transport and Environment,2011,(05):347-357.