@article{MZ_1953__58_169345,
     author = {Hans-Egon Richert},
     title = {Versch\"arfung der {Absch\"atzung} beim {Dirichletschen} {Teilerproblem.}},
     journal = {Mathematische Zeitschrift},
     pages = {204--218},
     publisher = {mathdoc},
     volume = {58},
     year = {1953},
     zbl = {0050.04202},
     url = {http://geodesic.mathdoc.fr/item/MZ_1953__58_169345/}
}