@article{MZ_1952__56_169267,
     author = {K. Zeller},
     title = {Verallgemeinerte {Matrixtransformationen.}},
     journal = {Mathematische Zeitschrift},
     pages = {18--20},
     publisher = {mathdoc},
     volume = {56},
     year = {1952},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1952__56_169267/}
}