Friedman, Avner <br/><br/>
Variational principles and free boundary problems   

 - New York  John Wiley  1982 
 - ix, 710p. Index 
 - Wiley Interscience series in Pure and Applied Mathematics .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>515.64  / F911.VP