References
- Cole , H. 1968 . “ Theory of Ordinam Differential Eauations ” . Century : Appleton .
- Lakshmikantham , V. , Bamov , D.D. and Simeonov , P.S. 1989 . “ Theory of Impulsive Differential Equations ” . In Series in Modern Applied Mathematics , Vol. 6 , World Scientific .
- Lakshmikantham V. Murty K.N. Sivasundaram S. Impulsive differential systems for two point boundary value problems Applied Mathematics and Computations (to appear)