@article{MZ_1962__78_170023,
     author = {Bruno M\"uller},
     title = {Eine {Versch\"arfung} f\"ur {Absch\"atzungen} von {Summenmengen} in lokalkompakten {Gruppen.}},
     journal = {Mathematische Zeitschrift},
     pages = {199--204},
     publisher = {mathdoc},
     volume = {78},
     year = {1962},
     zbl = {0106.02703},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__78_170023/}
}