@article{MZ_1970__118_171457,
     author = {Helmut Lenzing},
     title = {Halberbliche {Endomorphismenringe.}},
     journal = {Mathematische Zeitschrift},
     pages = {219--240},
     year = {1970},
     volume = {118},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1970__118_171457/}
}