1. An economic analysis of three hydrogen liquefaction systems;Syed;Int J Hydrogen Energy,1998
2. US DOE Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles. Available at: https://www.energy.gov/sites/prod/files/2017/05/f34/fcto_myrdd_table_onboard_h2_storage_systems_doe_targets_ldv_1.pdf. [Accessed July 2018]
3. The U.S. Department of Energy's national hydrogen storage project: progress towards meeting hydrogen-powered vehicle requirements;Satyapal;Catal Today,2007
4. Comparison of practical hydrogen-storage volumetric densities;Miller,2007
5. Lasher S, McKenney K, Sinha J, Ahluwalia RK, Hua TQ, Peng JK. Technical assessment of compressed hydrogen storage tank systems for automotive applications. Report to DOE, DE-FC36-04GO14283, Part 1, December 2009.