1. Ceramic humidity sensors;Nitta;IEEE Trans. Components, Hybrids Manufact. Technol., CHMT-3,1980
2. A new multifunctional sensitive ceramic BTS;Zhi-gang;Proc. 36th Electronic Components Conf., Seattle, WA, U.S.A.,1986
3. Zhou Zhigang, Zhao Gang and Zhang Zhongtai, Temperature-humidity-gas multifunctional ceramic sensor and technology, Chinese Patent CN85 1 00146A (1986);
4. European Patent Application 02 05 777 A1 (1986);
5. U.S. Patent for a multifunctional ceramic sensor was received from the U.S. Patent and Trademark Office (1988).