1. Looking at the hydrogen economy;Anon;Nature,1973
2. New Zealand Energy Information Handbook;Baines,1993
3. A hydrogen economy;Bockris;Science,1972
4. Bossel, U., 2006. Does a hydrogen economy make sense? in: Proceedings of the IEEE, vol. 94, pp. 1826–1837.
5. Brown, R.K., Clemens, A.H., Pearce S.M., 2005. Commissioning of a coal to fuel cell grade hydrogen technology package. In: The 22nd Pittsburgh International Coal Conference, September 12–15, University of Pittsburgh School of Engineering, Pittsburgh, USA.