Lions, J. L. <br/><br/>
Optimal control of systems governed by partial differential equations  / 

 - Berlin:  Springer-Verlag,  1971 
 - xi, 396p. Index 
 - Die Grundlehren der Mathematischen Wissenschaften   v. 170 .
<br/><br/> "Translated by S. K. Mitter". 
<br/><br/><label>Dewey Class. No.: </label>519.93  / L763.OC