1. P.T. Moseley, J.O.W. Norris, D.E. Williams (Eds.), Techniques and Mechanisms of Gas Sensing, Adam Hilger, Bristol, 1991.
2. W. Göpel, J. Hesse, J.N. Zemel (Eds.), Sensors. A Comprehensive Survey, Vol. 1, 2nd ed., V.C.H., Weinheim, 1991.
3. K.T.V. Grattan, A.T. Augousti (Eds.), Sensors and Technology: Systems and Applications, Adam Hilger, Bristol, 1991, p. 121.
4. J. Janata, Principle of Chemical Sensors, Plenum Press, New York, 1989.
5. M.J. Madou, S.R. Morrison, Chemical Sensing with Solid State Devices, Academic Press, London, 1989.