Vainberg, N. M. <br/><br/>
Variational methods and methods of monotone operators in theory of non-linear equations  / 

 - New York:  John Wiley,  1973 
 - xii, 356p. 
<br/><br/> "Translated by A. Libin" 
<br/><br/><label>Dewey Class. No.: </label>515.64  / V131.VM