@article{JRAM_1994__452_153631,
     author = {Eberhard Kirchberg},
     title = {Commutants of unitaries in {UHF} algebras and functorial properties of exactness.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {39--78},
     publisher = {mathdoc},
     volume = {452},
     year = {1994},
     zbl = {0796.46043},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1994__452_153631/}
}