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2. Wald, M.Ford Shows a Hybrid Car With 2 Modes: Electric or Electric.New York Times, January 23,2007.
3. Batteries and Ultracapacitors for Electric, Hybrid, and Fuel Cell Vehicles
4. Using fleets of electric-drive vehicles for grid support
5. Environmental Assessment of Plug-In Hybrid Electric Vehicles, Volume 1: Nationwide Greenhouse Gas Emissions, Electric Power Research Institute Report 1015325.www.epri.org(accessed Nov.2007).