%0 Journal Article %A Steven Alpern %T A Topological Analog of Halmos' Conjugacy Lemma. %J Inventiones mathematicae %D 1978 %P 1-6 %V 48 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1978__48_142581/ %F IM_1978__48_142581