@article{MAN_1931__104_159484,
     author = {S. Bochner},
     title = {\"Uber gewisse {Differential-} und allgemeinere {Gleichungen,} deren {L\"osungen} fastperiodisch sind. {III.} {Teil:} {Systeme} von {Gleichungen}},
     journal = {Mathematische Annalen},
     pages = {579--587},
     publisher = {mathdoc},
     volume = {104},
     year = {1931},
     zbl = {0001.27501},
     url = {http://geodesic.mathdoc.fr/item/MAN_1931__104_159484/}
}