1. Theory of Impulsive Differential Equations;Lakshmikantham,1989
2. Systems with Impulse Effect;Bainov,1989
3. Impulsive Differential Equations;Samoilenko,1995
4. Nonlinear Integral Equations in Abstract Spaces;Guo,1996
5. Second order differential operators with integral boundary conditions and generation of semigroups;Gallardo;Rocky Mountain J. Math,2000