@article{IM_1977__39_142456,
     author = {D. Olesen and G.K. Pedersen and E. Stornier},
     title = {Compact {Abelian} {Groups} of {Automorphisms} of {Simple} {C*-Algebras}},
     journal = {Inventiones mathematicae},
     pages = {55--64},
     publisher = {mathdoc},
     volume = {39},
     year = {1977},
     zbl = {0348.46049},
     url = {http://geodesic.mathdoc.fr/item/IM_1977__39_142456/}
}