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2. European fuel cell and hydrogen projects 2002–2006, (2007) EUR 22398, IBSN: 92-79-02692-5 http://ec.europa.eu/research/energy/
3. Solid state energy conversion alliance (SECA) program. http://www.netl.doe.gov/technologies/coalpower/fuelcells/seca/
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5. Private communication Nabielek H, Steinberger (2006) REAL SOFC Summer school 2006. http://www.real-sofc.org/