@article{MAN_1933__107_159605,
     author = {A. Khintchine},
     title = {Zu {Birkhoffs} {L\"osung} des {Ergodenproblems}},
     journal = {Mathematische Annalen},
     pages = {485--488},
     publisher = {mathdoc},
     volume = {107},
     year = {1933},
     zbl = {58.1273.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1933__107_159605/}
}