APA (7th ed.) Citation

Dacorogna, B. (1989). Direct methods in the calculus of variations. Springer-Verlag.

Chicago Style (17th ed.) Citation

Dacorogna, Bernard. Direct Methods in the Calculus of Variations. Berlin: Springer-Verlag, 1989.

MLA (9th ed.) Citation

Dacorogna, Bernard. Direct Methods in the Calculus of Variations. Springer-Verlag, 1989.

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