Filippov, V. M. <br/><br/>
Variational principles for nonpotential operators/ 
V. M. Filippov ; translated from the Russian by J. R. Schulenberger. 
 - Providence, R.I.:  American Mathematical Society,  c1989. 
 - xiii, 239 p.:  ill.;  24 cm. 
 - Translations of mathematical monographs,  v. 77. .
<br/><br/>Bibliography: p. 215-239. 
<br/><br/><label>ISBN: </label>0821845292 (alk. paper) 
<br/><br/><label>LCCN: </label>89006904 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Opérateurs non linéaires.<br/>Principes variationnels.<br/>Équations aux dérivées partielles.<br/>Nonlinear operators<br/>Variational principles.<br/>Differential equations, Partial.
<br/><br/><label>Dewey Class. No.: </label>515.724