@article{AUPO_2004_43_1_a3,
     author = {Draessler, Jan},
     title = {Impulsive periodic boundary value problem},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {33--53},
     year = {2004},
     volume = {43},
     number = {1},
     mrnumber = {2124601},
     zbl = {1072.34025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_2004_43_1_a3/}
}