@article{JDM_1930__39_145843,
     author = {Alexander Ostrowski},
     title = {Mathematische {Miszellen.} {XVI.} {Zur} {Theorie} der linearen {Diophantischen} {Approximationen.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {34--46},
     publisher = {mathdoc},
     volume = {39},
     year = {1930},
     zbl = {56.0184.01},
     url = {http://geodesic.mathdoc.fr/item/JDM_1930__39_145843/}
}