TY  - JOUR
AU  - V. A. Zorich
TI  - Asymptotic behaviour at infinity of the admissible growth of the quasi-conformality coefficient and the invertibility of contact immersions of the Heisenberg group
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 2010
SP  - 591
EP  - 592
VL  - 65
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_2010_65_3_a10/
LA  - en
ID  - RM_2010_65_3_a10
ER  -