Heitler, W.. <br/><br/>
Elementary Wave Mechanics /  

 - Second Ed. /  
 - London W.1 :   Oxford University Press. 
 - p.193 :  
<br/><br/><label>ISBN: </label>0-19-851115-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wave Mechanics
<br/><br/><label>Dewey Class. No.: </label>B7:55  / H5H,J6