@article{MOMA_1965__69_177280,
     author = {W. Gr\"obner and W. Watzlawek},
     title = {Verallgemeinerte {Lie-Reihen} mit {Operatoren} h\"oherer {Ordnung.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {136--145},
     publisher = {mathdoc},
     volume = {69},
     year = {1965},
     zbl = {0166.36203},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1965__69_177280/}
}