%0 Journal Article %A H. Alexander %T Explicit imbedding of the (punctured) disc into C2. %J Commentarii mathematici Helvetici %D 1977 %P 539-544 %V 52 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1977__52_139712/ %F CMH_1977__52_139712