@article{JRAM_1990__412_153285,
     author = {K.R. Goodearl},
     title = {Extensions of dimension groups and {AF} {C*-algebras.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {150--219},
     publisher = {mathdoc},
     volume = {412},
     year = {1990},
     zbl = {0712.46028},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1990__412_153285/}
}