1. Hybrid Electric Vehicle (HEV) & Electric Vehicle (EV) Terminology;SAE Hybrid – EV Committee,2008
2. Modern Electric, Hybrid Electric, and Fuel Cell Vehicles: Fundamentals, Theory, and Design;Ehsani,2004
3. German, Hybrid Powered Vehicle;John,2003
4. Advanced Clean Cars Program;California Air Resources Board,2012
5. Executive Order B-16-2012;Brown,2012