Bell, R. L <br/><br/>
Negative electron affinity devices / 
R. L. Bell. 
 - Oxford :  Clarendon Press,  1973. 
 - ix, 148 p. :  ill. ;  24 cm. 
<br/><br/>Includes index and bibliography : p. 135-144. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semiconductors.