1. Kabs, H.;“Advanced SOFC Technology and its Realization at Siemens Westinghouse”, Bilateral Seminars 33, Materials and Processes for Advanced Technology: Materials for Energy Systems, Egyptian-German Workshop, Cairo 7.–9. April 2002, ISBN 3-89336-320-3, edited by D. Stöver, M. Bram, (2002), 91–101
2. Fujii, H.;“Status of National Project for SOFC Development in Japan”, Solid Oxide Fuel Cells Meeting, 18. November 2002, Palm Springs, USA, (2002)
3. Fujii, H.; Ninomiya, T; “Status of National Project for SOFC Development in Japan”, European Solid Oxide Fuel Cell Forum, Vol. 2, Lucerne, Switzerland 1.–5. Juli 2002, edited by J. Huijsmans, (2002), 700–707
4. Schmidt, M.; “The Hexis Project: Decentralised electricity generation with waste heat utilisation in the household”, Fuel Cells Bulletin 1, No 1, (1998) 9–11
5. Nakanishi, A.; Hattori, M.; Sakaki, Y.; Miyamoto, H.; Aiki, H.; Takenobu, K.; Nishiura, M.; “Development of MOLB Type SOFC”, European Solid Oxide Fuel Cell Forum, Vol. 2, Lucerne, Switzerland 1.–5. Juli 2002, edited by J. Huijsmans, (2002), 708–715