@article{MAN_1931__104_159483,
     author = {J. von Neumann},
     title = {Die {Eindeutigkeit} der {Schr\"odingerschen} {Operatoren}},
     journal = {Mathematische Annalen},
     pages = {570--578},
     year = {1931},
     volume = {104},
     zbl = {0001.24703},
     url = {http://geodesic.mathdoc.fr/item/MAN_1931__104_159483/}
}