TY  - JOUR
AU  - G. A. Kalyabin
TI  - Bilateral Estimates for the Least Norm of Extension Operators from Plane Convex Domains for Sobolev Spaces
JO  - Informatics and Automation
PY  - 1999
SP  - 146
EP  - 151
VL  - 227
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1999_227_a9/
LA  - ru
ID  - TRSPY_1999_227_a9
ER  -