@article{JRAM_1966__222_150740,
     author = {W. Burau},
     title = {Untersuchungen zur {Geometrie} der projektiven {Formen-} und {Invariantentheorie} 5: {Polarit\"at} und {Apolarit\"at} bei {Hyperfl\"achen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {148},
     publisher = {mathdoc},
     volume = {222},
     year = {1966},
     zbl = {0141.37301},
     language = {un},
     url = {https://geodesic-test.mathdoc.fr/item/JRAM_1966__222_150740/}
}