1. Lectures on the Calculus of Variations;Bliss,1946
2. Lectures on the Calculus of Variations;Bolza,1961
3. Introduction to the Calculus of Variations;Brechtken-Manderscheid,1983
4. Optimization-Theory and Applications, Problems with Ordinary Differential Equations;Cesari,1983
5. Calculus of Variations with Applications;Ewing,1985