Krainov Vladimir Paviovich <br/><br/>
Approximation methods of quantum mechanics 

 - Moscow  Originally Pub         1966 
 - 144p.  cm. 
<br/><br/><label>Standard No.: </label>103293 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>CN1, K6