@article{MAN_1927__96_159162,
     author = {Ph. Furtw\"angler},
     title = {\"Uber die simultane {Approximation} von {Irrationalzahlen}},
     journal = {Mathematische Annalen},
     pages = {169--175},
     publisher = {mathdoc},
     volume = {96},
     year = {1927},
     zbl = {52.0184.03},
     url = {http://geodesic.mathdoc.fr/item/MAN_1927__96_159162/}
}