Arcoumanis, C., C. Bae, R. Crookes, and E. Kinoshita. 2008. The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review. Fuel 87:1014-1030.
Economist, The. 2006. Arabian alchemy. Vol. 379, Issue 8480, 00130613, June 3.
EIA (Energy Information Administration). 2008. Natural gas consumption by end use. Available at http://tonto.eia.doe.gov/dnav/ng/ng_cons_sum_dcu_nus_m.htm. Accessed December 4, 2008.
Fackler, M. 2008. Latest Honda runs on hydrogen, not petroleum. New York Times, June 17. Available at http://www.nytimes.com/2008/06/17/business/worldbusiness/17fuelcell.html?_r=1&oref=slogin. Accessed August 28, 2008.
Fisher Scientific. 2008. Material Safety Data Sheet: Methanol. Available at http://fscimage. fishersci.com/msds/14280.htm. Accessed February 3, 2009.
Johnson-Matthey. 2006. Reducing emissions through gas to liquids technology. Available at http://ect.jmcatalysts.com/pdfs/Reducingemissionartp2-3.pdf. Accessed October 20, 2008.
Kim, M.Y., S.H.Yoon, B.W. Ryu, and C.S. Lee. 2008. Combustion and emission characteristics of DME as an alternative fuel for compression ignition engines with a high pressure injection system. Fuel 87:2779-2786.
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.
NRC (National Research Council). 2004. The Hydrogen Economy: Opportunities, Costs, Barriers, and R&D Needs. Washington, D.C.: The National Academies Press.
NRC. 2008. Transitions to Alternative Transportation Technologies—A Focus on Hydrogen. Washington, D.C.: The National Academies Press.
Rock, B. 2008. An overview of 2007 American 2007 natural gas vehicles. Helium, Inc. Available at http://www.helium.com/items/451632-an-overviewof-2007-american-2007-natural-gas-vehicles. Accessed September 2, 2008.
Yao, M., Z. Chen, Z. Zheng, B. Zhang, and Y. Xing. 2006. Study on the controlling strategies of homogeneous charge compression ignition combustion with fuel of dimethyl ether and methanol. Fuel 85:2046-2056.
Yborra, S. 2006. Taking a second look at the natural gas vehicle. American Gas (August/September):32-36.
Yeh, S. 2007. An empirical analysis on the adoption of alternative fuel vehicles: The case of natural gas vehicles. Energy Policy 35:5865-5875.