@article{MAN_1973__200_162351,
     author = {Wolfgang Gr\"olz},
     title = {Eine {Verallgemeinerung} des {Lemmas} von {Nakayama.}},
     journal = {Mathematische Annalen},
     pages = {185--188},
     publisher = {mathdoc},
     volume = {200},
     year = {1973},
     zbl = {0244.16013},
     url = {http://geodesic.mathdoc.fr/item/MAN_1973__200_162351/}
}