Kielhöfer, H., & Kielhöfer, H. (2018). Calculus of Variations: An Introduction to the One-Dimensional Theory with Examples and Exercises (1st ed. 2018.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-71123-2
Παραπομπή σε μορφή Chicago (17η εκδ.)Kielhöfer, Hansjörg, και Hansjörg Kielhöfer. Calculus of Variations: An Introduction to the One-Dimensional Theory with Examples and Exercises. 1st ed. 2018. Cham: Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-71123-2.
Παραπομπή σε μορφή MLA (8th εκδ.)Kielhöfer, Hansjörg, και Hansjörg Kielhöfer. Calculus of Variations: An Introduction to the One-Dimensional Theory with Examples and Exercises. 1st ed. 2018. Springer International Publishing : Imprint: Springer, 2018. https://doi.org/10.1007/978-3-319-71123-2.
