1. Oxygen sensor using CoO ceramics;Logothetis;Appl. Phys. Lett.,1975
2. Oxygen sensor with Co1 — xMgxO ceramics;Park;J. Electrochem. Soc.,1977
3. Thin solid-state electrochemical gas sensor;Velasco;Sensors and Actuators,1982
4. Limiting current type oxygen sensor;Saji;Proc. 4th Sensor Symp., Japan,1984
5. Relations between the concentrations of imperfections in crystalline solids;Kröger,1956