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On variational principles in which the Lagrangian function involves third order derivatives - MaRDI portal

On variational principles in which the Lagrangian function involves third order derivatives (Q2395650)

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On variational principles in which the Lagrangian function involves third order derivatives
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    On variational principles in which the Lagrangian function involves third order derivatives (English)
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    1964
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    variational calculus
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