@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/