Encyclopedia of physics,  v21. electron-emission gas discharges I 

 - Berlin  Springer-Verlag  1956 
 - vii,683p. 
<br/><br/><label>Subjects--Index Terms: </label>Physics - Encyclopedia  Gas Discharges  Electron Emission  Thermionic Emission 
<br/><br/><label>Dewey Class. No.: </label>530.03  / FLU.21