@article{MS2_1977__40_166531,
     author = {W.L. Paschke},
     title = {Integrable group actions on von {Neumann} algebras.},
     journal = {Mathematica Scandinavica},
     pages = {234--248},
     publisher = {mathdoc},
     volume = {40},
     year = {1977},
     zbl = {0372.46067},
     url = {http://geodesic.mathdoc.fr/item/MS2_1977__40_166531/}
}