Differential Equations & Applications · Volume 9, Issue 1 Existence of solutions to nonlinear boundary value problems 09-01 Pages 1-11 DOI 10.7153/dea-09-01 Downloads Short PDF Full PDF PNG Authors Jesús Rodríguez Adam J. Suarez Keywords ordinary differential equations nonlinear equations periodic solutions Subject classes 34A34 34B15 47J07 47H09 47H10