TY  - JOUR
AU  - A. N. Vagin
TI  - Distortion theory for multivalent quasiconformal mappings of the
JO  - Doklady Akademii Nauk
PY  - 1987
SP  - 1036
EP  - 1039
VL  - 297
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1987_297_5_a1/
LA  - ru
ID  - DAN_1987_297_5_a1
ER  -