NAS-NAE-NRC (National Academy of Sciences-National Academy of Engineering-National Research Council). 2009. America’s Energy Future: Technology and Transformation. Washington, D.C.: The National Academies Press.
NPC (National Petroleum Council). 2007. Technologies for Transportation Efficiency. Topic paper of the Transportation Efficiency Subgroup. Council Committee on Global Oil and Gas. Washington, D.C.: NPC. July.
NRC (National Research Council). 2001. Energy Research at DOE: Was It Worth It? Washington, D.C.: National Academy Press.
NRC. 2004. The Hydrogen Economy: Opportunities, Costs, and R&D Needs. Washington, D.C.: The National Academies Press.
NREL (National Renewable Energy Laboratory). 2002. Chemical Industry of the Future: Resources and Tools for Energy Efficiency and Cost Reduction Now. DOE/GO-102002-1529; NREL/CD-840-30969. October. Available at http://www.nrel.gov/docs/fy03osti/30969.pdf.
Wohlecker, R., M. Johannaber, and M. Espig. 2007. Determination of weight elasticity of fuel economy for ICE, hybrid and fuel cell vehicles. SAE Technical Paper 2007-01-0343. Warrendale, Pa.: SAE International.
Worrell, E., and C. Galitsky. 2004. Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making—An ENERGY STAR (R) Guide for Energy and Plant Managers. LBNL-54036. Berkeley, Calif.: Lawrence Berkeley National Laboratory.