@article{JRAM_1976__0283_0284_151738,
     author = {Karl Wilhelm Bauer},
     title = {Polynomoperatoren bei {Differentialgleichungen} der {Form} wzz + {Awz} + {Bw} = 0.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {364--369},
     publisher = {mathdoc},
     volume = {0283_0284},
     year = {1976},
     zbl = {0325.35031},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1976__0283_0284_151738/}
}