@article{PIM_1982_N_S_32_46_a14,
     author = {I. Kubiaczyk and S. Szufla},
     title = {Kneser's {Theorem} {For} {Weak} {Solutions} {Of} {Ordinary} {Differential} {Equations} {In} {Banach} {Spaces}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {99 },
     publisher = {mathdoc},
     volume = {_N_S_32},
     number = {46},
     year = {1982},
     url = {http://geodesic.mathdoc.fr/item/PIM_1982_N_S_32_46_a14/}
}