1. 10. DOE Hydrogen and Fuel Cell Technologies Program , DOE H2A Analysis . http://www.hydrogen.energy.gov/h2a_analysis.html.
2. 17. Deutsch T. and Turner J. , in DOE Hydrogen and Fuel Cell Technologies Program, Hydrogen Production and Delivery Annual Merit Review Proceedings, 2013. http://www.hydrogen.energy.gov/pdfs/review13/pd035_deutsch_2013_o.pdf
3. 3. DOE Hydrogen and Fuel Cell Technologies Program, Fuel Cell System Cost -2013 , http://hydrogen.energy.gov/pdfs/13012_fuel_cell_system_cost_2013.pdf.
4. 16. McDaniel A. and Ermanoski I , in DOE Hydrogen and Fuel Cell Technologies Program, Hydrogen Production and Delivery Annual Merit Review Proceedings, 2013. http://www.hydrogen.energy.gov/pdfs/review13/pd081_mcdaniel_2013_o.pdf
5. 1. Global Hydrogen Generation MARKET , Markets and Markets , 2011.