1. Semiconductors with large negative temperature coefficient of resistance;VERWEY;Philips Technical Review,1947
2. Reliability and reproducibility of ceramic sensors: Part I NTC thermistor;FAGAN;Am. Ceram. Soc. Bull.,1993
3. Conductivity data and preparation routes for NiMn2O4 thermistor ceramics;FELTZ;J. Eur. Ceram. Soc.,1992
4. Noise in spinel ceramics;HOSSEINI;Phys. Stat. Sol. (a),1977
5. HILL, D. C. & TULLER, H. L., Ceramic Sensors: Theory and Practice. In Ceramic Materials for Electronics, ed. R. C. Buchanan. Marcel Dekker Inc., New York, 1991, p. 283.