TY - JOUR AU - V. A. Shchepetev TI - About distortion theorems for one class quasi-conformal mappings, conformal outside a ring JO - Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika PY - 2009 SP - 65 EP - 74 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VTGU_2009_4_a5/ LA - ru ID - VTGU_2009_4_a5 ER -