Robert Steinberger-Wilckens (Res Ctr Julich) Q: What are the challenges in construction the vehicles based on SOFC? A: Q: What already studied cathode materials do you consider as advantageous? A: Q: What is `electrolyte/anode/metal supported'? A: Q: What is the main reason of electrode performance improvement in the case of LSC cathode during the last 10 years? A: