@article{MZ_1977__156_172585,
     author = {Bert Beisiegel},
     title = {Semi-Extraspezielle {p-Gruppen.}},
     journal = {Mathematische Zeitschrift},
     pages = {247--254},
     year = {1977},
     volume = {156},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1977__156_172585/}
}