Kac, Victor G.  <br/><br/>
Infinite Dimensional Lie Algebras /  
Victor G. Kag  
 - 3rd Ed.  
 - New York :   Cambridge University Press,   c1990.  
 - xxi,400p.  
<br/><br/><label>ISBN: </label>9780521466936 
<br/><br/><label>Dewey Class. No.: </label>512.55  / KacI3