@article{MZ_1953__58_169337, author = {Hans-Egon Richert}, title = {\"Uber die {Anzahl} {Abelscher} {Gruppen} gegebener {Ordnung.} {II.}}, journal = {Mathematische Zeitschrift}, pages = {71--84}, publisher = {mathdoc}, volume = {58}, year = {1953}, zbl = {0050.02302}, url = {http://geodesic.mathdoc.fr/item/MZ_1953__58_169337/} }