1. Proc. First Int. Symp. Solid Oxide Fuel Cells;Liou,1989
2. Proc. Third Int. Symp. Solid Oxide Fuel Cells;Marques,1993
3. Proc. Third Int. Symp. Solid Oxide Fuel Cells;Colomer,1993
4. Proc. Third Int. Symp. Solid Oxide Fuel Cells;Eguchi,1993
5. Proc. Second Int. Symp. Solid Oxide Fuel Cells (in Athens);Eguchi,1991