Sommerfeld, Arnold <br/><br/>
Atomic structure and spectral lines 
Arnold Sommerfeld     
 - London  Methuen  1923 
 - xiii, 626p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atomic structure<br/>Spectral lines
<br/><br/><label>Universal Decimal Class. No.: </label>539.18  / SOM