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Periodic solutions of a second order superquadratic system with a change of sign in the potential - MaRDI portal

Periodic solutions of a second order superquadratic system with a change of sign in the potential (Q1178491)

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scientific article; zbMATH DE number 21710
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Periodic solutions of a second order superquadratic system with a change of sign in the potential
scientific article; zbMATH DE number 21710

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