1. S.M. Sze, Semiconductor Sensors (Wiley, New York, 1994)
2. R. Jaaniso, O.K. Tan, Semiconductor Gas Sensors (Elsevier, Amsterdam, 2013)
3. Penguin Dictionary of Electronics, 4th edn. (Penguin, UK, 2005)
4. A. Sen, Semiconducting oxides in gas sensing. Sci. Cult. 71, 178–184 (2005)
5. P.T. Mosley, Solid state gas sensors. Meas. Sci. Technol. 8, 223–237 (1997)