Lepowsky, James <br/><br/>
Introduction to vertex operator algebras and their representations  / 

 - Boston:  Birkhauser Verlag,  2004 
 - xi, 318p. Bibl. Index. 
 - Progress in Mathematics ; 227 .
<br/><br/><label>ISBN: </label>0817634088 
<br/><br/><label>Dewey Class. No.: </label>512  / L598.IV