@article{JRAM_1997__492_153953,
     author = {Ruy Exel},
     title = {Amenability for {Fell} bundles.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {41--74},
     publisher = {mathdoc},
     volume = {492},
     year = {1997},
     zbl = {0881.46046},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1997__492_153953/}
}