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2. Handbook of Hydrogen Storage: New Materials for Future Energy Storage;Hirscher,2010
3. Hydrogen and Fuel Cells: A Comprehensive Guide;Busby,2005
4. A novel design of solid-state NaBH4 composite as a hydrogen source for 2W PEMFC applications
5. Apple has plans to use hydrogen in batteries allowing iPhones and iPods to hold a charge for WEEKS, http://www.dailymail.co.uk/news/article-2078499/Apple-plans-use-hydrogen-batteries-allowing-iPhones-iPods-hold-charge-WEEKS.html.