Variational Methods - 9783642093296

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Variational Methods : Applications to Nonlinear Partial Different

Variational Methods: Applications to Nonlinear Partial Differential Equations an

Variational Methods for Potential Operator Equations : With Applications to N...

Variational Methods: Applications to Nonlinear Partial Differential Equations

Bek - Methods of Nonlinear Analysis Applications to Differential Equa - X555z