Elsgolts, L <br/><br/>
Differential Equations and the Calculus of Variations 

 - Moscow  Mir Publishers  1977 
 - 440p. 
<br/><br/><label>Subjects--Uniform Titles: </label>--GENERAL STACK
<br/><br/><label>Subjects--Topical Terms: </label><br/>NATURAL SCIENCES & MATHEMATICS--ANALYSISMathematics--MATHEMATICS
<br/><br/><label>Dewey Class. No.: </label>515.35  / ELS-D