@article{MS2_1979__45_166671,
     author = {Dorte Olesen},
     title = {A classification of ideals in crossed products.},
     journal = {Mathematica Scandinavica},
     pages = {157--167},
     publisher = {mathdoc},
     volume = {45},
     year = {1979},
     zbl = {0429.46043},
     url = {http://geodesic.mathdoc.fr/item/MS2_1979__45_166671/}
}