@article{BUMI_1956_3_11_4_a1,
     author = {Wintner, Aurel},
     title = {On the local uniqueness of the initial value problem of the  differential equation $d^nx/dt^n=f(t,x)$.},
     journal = {Bollettino della Unione matematica italiana},
     pages = {496--498},
     publisher = {mathdoc},
     volume = {Ser. 3, 11},
     number = {4},
     year = {1956},
     zbl = {0071.29902},
     mrnumber = {85395},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1956_3_11_4_a1/}
}