@article{BAG_1971__1_138067,
     author = {G. GEISE},
     title = {\"Uber {Matrizengeometrie}},
     journal = {Beitr\"age zur Algebra und Geometrie},
     pages = {41--56},
     publisher = {mathdoc},
     volume = {1},
     year = {1971},
     url = {http://geodesic.mathdoc.fr/item/BAG_1971__1_138067/}
}