Koschmieder, Lothar, <br/><br/>
Variationsrechnung / 
von Lothar Koschmieder. 
 - Berlin :  W. de Gruyter,  1933-. 
 - v. I : 
<br/><br/><label>ISBN: </label>GER5886 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus of variations.
<br/><br/><label>Dewey Class. No.: </label>515.64  / Va