On periodic solutions of a class of second order nonautonomous systems with nonhomogeneous potentials indefinite in sign
M. Matzeu, M. Girardi (1997)
Rendiconti del Seminario Matematico della Università di Padova
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Displaying similar documents to “Periodic Solutions of Second Order Nonautonomous Systems with the Potentials Changing Sign”
On periodic solutions of a class of second order nonautonomous systems with nonhomogeneous potentials indefinite in sign
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