Elsgolts, L. E., <br/><br/>
Differential equations and the calculus of variations / 
L. elsgolts ; translated by George yankovsky 
 - 440 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cálculo de variaciones<br/>Ecuaciones diferenciales
<br/><br/><label>LC Class. No.: </label>QA371  / E514