The following publications are possibly variants of this publication:
- Periodic boundary value problems for the first order impulsive functional differential equationsWei Ding, Junrong Mi, Maoan Han. amc, 165(2):433-446, 2005. [doi]
- Periodic boundary value problem for the second order impulsive functional differential equationsWei Ding, Maoan Han. amc, 155(3):709-726, 2004. [doi]
- Integral boundary value problems for first order nonlinear impulsive functional integro-differential differential equationsJiangfeng Han, Yiliang Liu, Jing Zhao. amc, 218(9):5002-5009, 2012. [doi]