1. Multiplicity results for classes of one-dimensional p-Laplacian boundary-value problems with cubic-like nonlinearities;Addou;Electron. J. Differential Equations,2000
2. Inverse problems connected with periods of oscillations described by x¨+g(x)=0;Alfawicka;Ann. Polon. Math.,1984
3. Inverse problem connected with half-period function analytic at the origin;Alfawicka;Bull. Pol. Acad. Sci. Math.,1984
4. Period function for a class of Hamiltonian systems;Cima;J. Differential Equations,2000
5. Isochronity for several classes of Hamiltonian systems;Cima;J. Differential Equations,1999