%0 Journal Article %A V. A. Zorich %T Asymptotic behaviour at infinity of the admissible growth of the quasi-conformality coefficient and the invertibility of contact immersions of the Heisenberg group %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2010 %P 591-592 %V 65 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2010_65_3_a10/ %G en %F RM_2010_65_3_a10