Conference on mathematical physics X (Leipzig,1991) <br/><br/>
Mathematical physics X   
ed.by K. Schmudgen. 
 - Berlin  Springer-Verlag  1992 
 - x, 497p. 
<br/><br/><label>ISBN: </label>3540551662 
<br/><br/><label>Dewey Class. No.: </label>530.15  / N92