Title : 
Gaseous impurities and the performance of VR-tubes
         
        
            Author : 
Drennan, J.E. ; Todd, F.C.
         
        
            Author_Institution : 
Battelle Memorial Institute
         
        
        
        
        
        
        
            Journal_Title : 
Electron Devices, Transactions of the IRE Professional Group on
         
        
        
        
        
            DOI : 
10.1109/T-ED.1954.13979