%0 Journal Article %A E. V. Zhuzhoma %A V. S. Medvedev %T The Closure Lemma for Piecewise Diffeomorphic Maps of the Circle %J Matematičeskie zametki %D 2001 %P 310-313 %V 69 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2001_69_2_a15/ %G ru %F MZM_2001_69_2_a15