1. U.S. Department of Transportation, National Highway Traffic Safety Administration Automotive Fuel Economy Program Annual Update Calendar Year 2004, DOE HS 809 512 http://www.nhtsa.dot.gov/staticfiles/DOT/NHTSA/Vehicle%20Safety/CAFÉ/2004_Fuel_Economy_Program.pdf
2. Stetson N An overview of U.S. DOE's activities for hydrogen fuel cell technologies 2012
3. Lasher S Department of Energy Hydrogen Program 2008 Annual Merit Review, Analyses of Hydrogen Storage Materials and On-Board Systems 2008 http://www.hydrogen.energy.gov/pdfs/review08/st_1_lasher.pdf
4. High-pressure hydrogen storage on modified MIL-101 metal-organic framework;Mao;International Journal of Energy Research,2007
5. Materials-based hydrogen storage: attributes for near-term, early market PEM fuel cells;McWhorter;Current Opinion in Solid State and Materials Science,2011