Quasicone metric spaces and generalizations of Caristi Kirk's theorem. Abdeljawad, Thabet; Karapinar, Erdal — 2009 Fixed Point Theory and Applications [electronic only]
Variational optimal-control problems with delayed arguments on time scales. Abdeljawad, Thabet; Jarad, Fahd; Baleanu, Dumitru — 2009 Advances in Difference Equations [electronic only]
Perron-type criterion for linear difference equations with distributed delay. Alzabut, Jehad O.; Abdeljawad, Thabet — 2007 Discrete Dynamics in Nature and Society