Berger, M & Berger, M <br/><br/>
Perspectives in nonlinearity  introduction to nonlinear analysis 
M. Berger & M. Berger 
 - New York  W.A. Benjamin Inc.  1968 
 - 189 
 - Mathematics lecture note series .
<br/><br/><label>Dewey Class. No.: </label>6.01  / BERG