1. Steele BCH, Heinzel A (2001) Materials for fuel-cell technologies. Nature 414:345–352
2. Minh NQ, Takahashi T (1995) Science and technology of ceramic fuel cells. Elsevier, Amsterdam
3. Singhal SC, Kendall K (2003) High-temperature solid oxide fuel cells: fundamentals, design and application. Elsevier, Oxford, UK
4. Larminie J, Dicks A (2003) Fuel cell systems explained, 2nd edn. Wiley, West Sussex
5. Tagawa H (1998) Solid oxide fuel cells and global environment. Agune-Shofudo, Shinjuku. (in Japanese)