@article{MZ_1962__78_170042,
     author = {G\"unter Hellwig},
     title = {Eine {Bemerkung} zum {Ausstrahlungsproblem.}},
     journal = {Mathematische Zeitschrift},
     pages = {446--448},
     publisher = {mathdoc},
     volume = {78},
     year = {1962},
     zbl = {0103.07002},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__78_170042/}
}