@article{MOMA_1979__88_177947,
     author = {Robert F. Tichy},
     title = {Zum {Approximationssatz} von {Dirichlet.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {331--334},
     publisher = {mathdoc},
     volume = {88},
     year = {1979},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1979__88_177947/}
}