1. Theory of Impulsive Differential Equations;Lakshmikantham,1989
2. Impulsive Differential Equations: Periodic Solutions and Applications;Bainov,1993
3. Monotone Iterative Techniques for Nonlinear Differential Equations;Ladde,1985
4. Periodic boundary value problem for impulsive integro-differential equations of Volterra type;Ladde;J. Math. Phys. Sci.,1991
5. Iterative methods for solutions of impulsive functional differential systems;Liu;Appl. Anal.,1992