1. Hydrogen: the future energy carrier by Andreas Züttel, Arndt Remhof, Andreas Borgschulte, and Oliver Friedrichs Philosophical Transactions A Volume 368(1923):3329-3342 July 28, 2010 ©2010 by The Royal Society

2. Energy demand according to the energy carriers over the last 200 years (J.-M. Andreas Züttel et al. Phil. Trans. R. Soc. A 2010;368:3329- 3342 ©2010 by The Royal Society

3. Development of the oil price without correction for inflation (http://www.ioga.com/Special/crudeoil.Hist.htm). Andreas Züttel et al. Phil. Trans. R. Soc. A 2010;368:3329- 3342 ©2010 by The Royal Society

4. The hydrogen cycle: the energy from sunlight is converted into electricity by means of photovoltaic cells. Andreas Züttel et al. Phil. Trans. R. Soc. A 2010;368:3329- 3342 ©2010 by The Royal Society

5. Comparison of (a) metal and (b) complex hydrides. Andreas Züttel et al. Phil. Trans. R. Soc. A 2010;368:3329- 3342 ©2010 by The Royal Society

6. Volumetric and gravimetric hydrogen density of some selected hydrides. Andreas Züttel et al. Phil. Trans. R. Soc. A 2010;368:3329- 3342 ©2010 by The Royal Society

7. The synthetic fuel cycle: hydrogen is produced from solar energy and water. Andreas Züttel et al. Phil. Trans. R. Soc. A 2010;368:3329- 3342 ©2010 by The Royal Society

8. Volumetric versus gravimetric energy density of the most important energy carriers. Andreas Züttel et al. Phil. Trans. R. Soc. A 2010;368:3329- 3342 ©2010 by The Royal Society