@article{MZ_1970__116_171384,
     author = {C.B. Hallahan and J. Overbeck},
     title = {Cartan {Subalgebras} of {Meta-Nilpotent} {Lie} {Algebras.}},
     journal = {Mathematische Zeitschrift},
     pages = {215--217},
     publisher = {mathdoc},
     volume = {116},
     year = {1970},
     zbl = {0202.04102},
     url = {http://geodesic.mathdoc.fr/item/MZ_1970__116_171384/}
}