@article{MS2_1981__49_166772,
     author = {Yoshikazu Katayama},
     title = {Remarks on a {C*-dynamical} system.},
     journal = {Mathematica Scandinavica},
     pages = {250--258},
     publisher = {mathdoc},
     volume = {49},
     year = {1981},
     zbl = {0483.46046},
     url = {http://geodesic.mathdoc.fr/item/MS2_1981__49_166772/}
}