1. T. Takada, K. Komatsu, Proc. 4th Int. Conf. on Solid State Sensors and Actuators, Tokyo, 1987, p. 693.
2. T. Takada, K. Suzuki, M.Nakane, Highly sensitive ozone sensor, Proc. 4th IMCS, 1992, pp. 470–473.
3. P. Banda, A. Campitelli, S. Lee, W. Wlodarski, Semiconducting oxide coated surface acoustic wave for environmental gas sensing applications, Proc. 5th IMCS, 1994, pp. 54–56.
4. W. Wlodarski, H.-T. Sun, A. Gurlo, W. Göpel, Sol-Gel prepared In2O3 thin films for ozone sensing, Proc. Transducers '97, 1997, pp. 573–576
5. A. Gurlo, M. Ivanovskaya, N. Bârsan, U. Weimar, W. Göpel, In2O3and In2O3–MoO3 thin film semiconductor sensors for O3 and NO2 detection, Proc. Eurosensors XI, 1997, 1181–1184.