@article {Train:March 1997:1366-5545:1,
	author = "Train K.E.",
	author = "Davis W.B.",
	author = "Levine M.D.",
	title = "Fees and rebates on new vehicles: impacts on fuel efficiency, carbon dioxide emissions, and consumer surplus",
	journal = "Transportation Research Part E: Logistics and Transportation Review",
	volume = "33",
	year = "March 1997",
	abstract = "",
	pages = "1-13(13)",
	url = "http://www.ingentaconnect.com/content/els/13665545/1997/00000033/00000001/art00003"
	doi = "doi:10.1016/S1366-5545(97)00003-3"
}