@article{MS2_1989__64_2_186125,
     author = {Judith A. Packer},
     title = {Twisted group {C*-algebras} corresponding to nilpotent discrete groups.},
     journal = {Mathematica Scandinavica},
     pages = {109--122},
     publisher = {mathdoc},
     volume = {64},
     number = {2},
     year = {1989},
     zbl = {0895.46031},
     url = {http://geodesic.mathdoc.fr/item/MS2_1989__64_2_186125/}
}