Rybakowski, K.P <br/><br/>
Homotopy index & partial differential equations 
K P. Rybakowski 
 - Berlin  Springer  1987 
 - xii  208 
 - Universitext .
<br/><br/><label>ISBN: </label>3540180672 
<br/><br/><label>Dewey Class. No.: </label>6.08  / RYBA