@article{MAN_1979__246_163324,
     author = {H. Wu},
     title = {On a {Problem} {Concerning} the {Intrinsic} {Characterization} of {Cn.}},
     journal = {Mathematische Annalen},
     pages = {15--22},
     publisher = {mathdoc},
     volume = {246},
     year = {1979},
     zbl = {0406.53050},
     url = {http://geodesic.mathdoc.fr/item/MAN_1979__246_163324/}
}