1. W. Göpel, J. Hesse, J.N. Zenel (Eds.), Sensors, A Comprehensive Study, VCH, Weinheim, 1982.
2. Electrical sensing of complex gaseous species by making use of acid-base properties☆
3. J. Maier, in: H.L. Tuller, I. Riess, J. Schoonman (Eds.), Proc. International School on Oxygen Ion and Mixed Conductors and Their Technological Applications, Erice '97, Kluwer, in press.
4. K. Dauter, E. Than, D. Molch, Analytik, Wissenschaftliche Verlagsgesellschaft, Stuttgart, 1977.
5. C. Weyrich, Werkstoff-Woche, Stuttgart, Plenary talk, 1996.