@article{MS2_1971__29_166213,
     author = {Kung-Fu Ng},
     title = {On a {Theorem} of {Dixmier.}},
     journal = {Mathematica Scandinavica},
     pages = {279--280},
     publisher = {mathdoc},
     volume = {29},
     year = {1971},
     zbl = {0243.46023},
     url = {http://geodesic.mathdoc.fr/item/MS2_1971__29_166213/}
}