@article{IM_1977__40_142476,
     author = {Walter Borho},
     title = {Definition einer {Dixmier-Abbildung} f\"ur ? l(n, {C).}},
     journal = {Inventiones mathematicae},
     pages = {143--170},
     publisher = {mathdoc},
     volume = {40},
     year = {1977},
     zbl = {0346.17014},
     url = {http://geodesic.mathdoc.fr/item/IM_1977__40_142476/}
}