TY  - JOUR
AU  - O. A. Timoshin
TI  - The Best Approximation of a~Derivative and Analogs of Landau's Inequality in a~Half-Space
JO  - Informatics and Automation
PY  - 1997
SP  - 387
EP  - 399
VL  - 219
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1997_219_a24/
LA  - ru
ID  - TRSPY_1997_219_a24
ER  -