@article{MZ_1962__79_170063,
     author = {Donald W. Barnes},
     title = {Nilpotency of {Lie} algebras.},
     journal = {Mathematische Zeitschrift},
     pages = {237--238},
     year = {1962},
     volume = {79},
     zbl = {0122.04001},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__79_170063/}
}