@article{05237120,
title = {Existence of solutions for second-order nonlinear impulsive differential equations with periodic boundary value conditions.},
journal = {Boundary Value Problems [electronic only]},
volume = {2007},
year = {2007},
doi = {10.1155/2007/41589},
zbl = {1139.34026},
language = {en},
url = {http://dml.mathdoc.fr/item/05237120}
}
Bai, Chuanzhi; Yang, Dandan. Existence of solutions for second-order nonlinear impulsive differential equations with periodic boundary value conditions.. Boundary Value Problems [electronic only], Tome 2007 (2007) . doi : 10.1155/2007/41589. http://gdmltest.u-ga.fr/item/05237120/