@article{MAN_1924__91_159051,
     author = {H. Brandt},
     title = {Der {Kompositionsbegriff} bei den quatern\"aren quadratischen {Formen}},
     journal = {Mathematische Annalen},
     pages = {300--315},
     year = {1924},
     volume = {91},
     zbl = {50.0099.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1924__91_159051/}
}