@article{EJDE_2011__2011__a8,
     author = {Han,  Zhiqing and Wang,  Suqin},
     title = {Mixed two-point boundary-value problems for impulsive differential equations},
     journal = {Electronic journal of differential equations},
     year = {2011},
     volume = {2011},
     zbl = {1219.34040},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a8/}
}