"Chemical and Physical Sensors Based On Oxygen Pumping With Solid-State Electrochemical Cells", by E. M. Logothetis, J. H. Visser, R. E. Soltis and L. Rimai; Dated: Apr. 30, 1992; pp. 183-189. |
"Sensors For Measuring Combustibles In The Absence Of Oxygen", by J. H. Visser, R. E. Soltis, L. Rimai and E. M. Logothetis; Dated: May 19, 1992; pp. 233-239. |
"Air-to-Fuel Sensors Based On Oxygen Pumping", by E. M. Logothetis; Dated: Sep. 10, 1987; pp. 1058-1073. |
"A High-Sensitivity Sensor For The Measurement Of Combustible Gas Mixtures", by: E. M. Logothetis, W. C. Vassel, R. E. Hetrick and W. J. Kaiser; Dated: Jun. 1985; pp. 363-372. |
"Gas-Diffusion-Controlled Solid-Electrolyte Oxygen Sensors", by Hermann Dietz; Dated: Sep. 11, 1981; pp. 175-183. |