@article{GDZPPN002396017, title = {Fahnenhomogene Quadrupelsysteme.}, journal = {Mathematische Zeitschrift}, volume = {87}, year = {1965}, pages = {82-90}, url = {http://dml.mathdoc.fr/item/GDZPPN002396017} }
Lüneburg, Heinz. Fahnenhomogene Quadrupelsysteme.. Mathematische Zeitschrift, Tome 87 (1965) pp. 82-90. http://gdmltest.u-ga.fr/item/GDZPPN002396017/