1. Battery Test Manual for Plug-in Hybrid Electric Vehicles, U.S. Department of Energy, Vehicle Technology Program, INL/EXT-07-12536, March 2008.
2. FreedomCar Ultracapacitor Test Manual, Idaho National Engineering Laboratory Report DOE/NE-ID-11173, September 21, 2004.
3. Electric Vehicle Capacitor Test Procedures Manual, Idaho National Engineering Laboratory Report DOE/ID-10491, October 1994.
4. A.F. Burke, M. Miller, Electrochemical Capacitors as Energy Storage in Hybrid-Electric Vehicles: Present Status and Future Prospects, EVS-24, Stavanger, Norway, May 2009 (paper on the CD of the meeting).
5. Supercapacitors for Hybrid-electric Vehicles: Recent Test Data and Future Projections Advanced Capacitor World Summit 2008;Burke,2008