Vertex operator algebras and the Monster 
Frenkel, Igor. 
 - Boston :  Academic Press,  1988 
 - liii, 508 p. :  ill. ;  24 cm. 
 - Pure and applied mathematics ;  v. 134 .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>122670655