1. V. I. Gaman, Russ. Phys. J., 51, No. 4, 425–437 (2008).
2. V. I. Gaman, Russ. Phys. J., 54, No. 10, 1137–1144 (2012).
3. F. J. Gutierrez and E. Milan, in: Proc. 2nd Int. Meeting on Chemical Sensors, Bordeaux (1986), p. 372–375.
4. I. A. Myasnikov, V. Ya. Sukharev, and L. Yu. Kupriyanov, Semiconductor Sensors in Physical and Chemical Investigations [in Russian], Nauka, Moscow (1991).
5. Z. Liu, T. Yamaraki, Y. Shen, et al., Sensors and Actuators, B129, No. 2, 666–670 (2008).