@article{MAN_1921__82_158834,
     author = {A. Ostrowski},
     title = {\"Uber die {Reihe} ........},
     journal = {Mathematische Annalen},
     pages = {64--67},
     publisher = {mathdoc},
     volume = {82},
     year = {1921},
     url = {http://geodesic.mathdoc.fr/item/MAN_1921__82_158834/}
}