1. M. PRUDENZIATI and B. MORTEN,Sensors and Actuators 10 (1986) 20.
2. M. PRUDENZIATI, ?Screen printed and fired sensors for physical and chemical quantities? in Proceedings on Transducers '87, Tokyo, June 1987, pp. 85?90.
3. F. SIROTTI, M. PRUDENZIATI, B. GIARDULLO, W. ANZOLIN and T. MANFREDINI,J. Mater. Sci., in press.
4. ?Handbook of Chemistry and Physics?, 64th Edn edited by R. C. West (The Chemical Rubber Co., Cleveland, Ohio, 1983/84).
5. B. MORTEN and G. DE CICCO,Sensors and Actuators, submitted.