1. Beebe, C. H., Liston, M. D., and McKinley, E. W.: (Filed Feb. 6, 1959) U. S. Patent 3,098,813, July 23 abstr. in Official Gazette U. S. Patent Office 792: 987, 1963.
2. Information of physiological value derived from continuous measurement of oxygen tension of blood in vivo;Purves,1969
3. Continuous measurements of intravascular oxygen tension in normal adults;Koeff;J. Clin. Invest.,1962
4. Die fortlaufende Messung des arteriellen Sauerstoffdruckes beim Menschen;Fabel;Arch. Kreislaufforsch.,1968
5. A new electrode system for continuous measurement of pH, pCO2, and temperature on flowing blood;Buzza;J. Assoc. Advance. Med. Instruments,1970