%0 Journal Article %A JA. Kelingos %T On the maximal dilatation of quasiconformal extensions %J Annales Fennici Mathematici %D 1971 %V 471-500 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1971.478/ %R 10.5186/aasfm.1971.478 %G en %F AFM_1971_471-500_a22