@article{MZ_1924__20_167790,
     author = {R. Weitzenb\"ock},
     title = {\"Uber orthogonale und {Bewegungsinvarianten} von {Linearformen}},
     journal = {Mathematische Zeitschrift},
     pages = {151--155},
     publisher = {mathdoc},
     volume = {20},
     year = {1924},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1924__20_167790/}
}