Lippmann, H. <br/><br/>
Extremum and variational principles in mechanics / 
H. Lippmann. 
 - Wien ;  New York :  Springer-Verlag,  1972. 
 - 238 p. :  ill. 
 - Courses and lectures - International Centre for Mechanical Sciences  No. 54 .
 - Courses and lectures  No. 54 .
<br/><br/>Bibliogr.: p. 227-238 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanics, Analytic<br/>Variational principles