First order impulsive differential inclusions with periodic conditions. Graef, J.R.; Ouahab, A. — 2008 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
Structure of solutions sets and a continuous version of Filippov's theorem for first order impulsive differential inclusions with periodic conditions. Graef, J.R.; Ouahab, A. — 2009 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
Weak solutions for nonlinear fractional differential equations on reflexive Banach spaces. Benchohra, M.; Graef, J.R.; Mostefai, F. — 2010 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
Nonresonance impulsive higher order functional nonconvex-valued differential inclusions. Benchohra, M.; Graef, J.R.; Henderson, J.; Ntouyas, S.K. — 2002 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
Higher order multi-point boundary value problems with sign-changing nonlinearities and nonhomogeneous boundary conditions. Graef, J.R.; Kong, Lingju; Kong, Qingkai; Wong, James S.W. — 2010 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]