1. T. Ichichi, Shoichi, Masaaki Ishizuka (Riken Keiki) JP 0 755 768; 3 March 1995
2. M. Shiratori, M. Katsura, T. Tsuchiya, Proceedings of the International Meeting on Chemical Sensors, Fukuoka, Japan, 19–22 September 1983, pp. 119–124
3. Development of semiconductor fluorocarbon gas sensor
4. Ion-sensitive field effect transistors;Janata;Ion-selective Electrode Rev.,1979