REFERENCES
- ANON: Cellular News, 30 July 2003.
- C. K. DYER: 'Portable technology: fuel cells for portable applications', .J Power Sources, 2002,106, 31–34.
- C. HANDLEY, N. P. BRANDON and R. VAN DER WORST: 'Impact of the European Union vehicle waste directive on end-of-life options for polymer electrolyte fuel cells', J. Power Sources, 2002,106, 344–352.
- C. JAFFRAY and G. HARDS: 'Precious metal requirements', (eds. W. Vielstich, A. Lamm and H. Gasteiger), Handbook of fuel cells: fundamentals, technology and applications, vol. 3,509–513: 2003, Chichester, John Wiley.
- O. MANYATHI: Mining Weekly, 23 January 2004.
- M. RONCHETTI and A. IACOBAZZI: 'Celle a combustibile: stato di sviluppo e prospettive della tecnologia', 16; 2002, Italy, ENEA.
- B. SORENSEN et al.: 'Hydrogen as an energy carrier: scenarios for future use of hydrogen in the Danish energy system', Int. J Hydrogen Energy, 2004,29, 23–32.
- V. VAITHEESWARAN: 'Power to the people: how the coming energy revolution will transform an industry, change our lives and maybe even save the planet', 1–228: 2003, New York, Farrar Straus Giroux.