%0 Journal Article %A Ya. G. Sinai %T An answer to a question by J. Milnor. %J Commentarii mathematici Helvetici %D 1985 %P 173-178 %V 60 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1985__60_140007/ %F CMH_1985__60_140007