1. Reactions Between Oxide Cathodes and Gases at Very Low Pressures;Wagener,1954
2. Reversibility of Oxygen Poisoning in Oxide-Cathode Valves
3. The Influence of Certain Gases on the Emission of Oxide Cathodes;Zykov;Radio Engng and Electronics,1958
4. The Effects of Oxygen on the Electrical Props. of Oxide Cathodes;Shepherd;J. Appl. Phys.,1953
5. Investigation of Effects of Oxygen and Oxides of Carbon on Emission of Impregnated and Porous-Metal Cathodes;Popov;Radio Engng and Electronics,1958