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