@article{MZ_1970__115_171327,
     author = {Adalbert Kerber},
     title = {Zur {Theorie} der {M-Gruppen.}},
     journal = {Mathematische Zeitschrift},
     pages = {4--6},
     publisher = {mathdoc},
     volume = {115},
     year = {1970},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1970__115_171327/}
}