@article{MAN_1931__105_159524,
     author = {J. Levitzki},
     title = {\"Uber nilpotente {Unterringe}},
     journal = {Mathematische Annalen},
     pages = {620--627},
     publisher = {mathdoc},
     volume = {105},
     year = {1931},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1931__105_159524/}
}