TY  - JOUR
AU  - I. G. Nikolaev
AU  - S. Z. Shefel'
TI  - Smoothness of convex surfaces on the basis of differential properties of quasiconformal mappings
JO  - Doklady Akademii Nauk
PY  - 1982
SP  - 296
EP  - 300
VL  - 267
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1982_267_2_a9/
LA  - ru
ID  - DAN_1982_267_2_a9
ER  -