@article{CMH_1992__67_3_140272,
     author = {Ernst-Ulrich Gekeler},
     title = {On the arithmetic of some division algebras.},
     journal = {Commentarii mathematici Helvetici},
     pages = {316--333},
     publisher = {mathdoc},
     volume = {67},
     number = {3},
     year = {1992},
     zbl = {0753.11025},
     url = {http://geodesic.mathdoc.fr/item/CMH_1992__67_3_140272/}
}