Barut, A. O. <br/><br/>
Theory of group representations and applications / 
A. O. Barut. 
 - 2nd revised ed. 
 -  Polish Scientific Publishers,  1980. 
 - xix, 717p. :  ill. 
<br/><br/>Bibliography: p. 667-702. 
<br/><br/><label>Subjects--Index Terms: </label>ფიზიკა 
<br/><br/><label>Universal Decimal Class. No.: </label>53