TY  - JOUR
AU  - G. V. Radzievskii
TI  - Direct and inverse theorems on approximation by root

JO  - Sbornik. Mathematics
PY  - 2006
SP  - 1037
EP  - 1083
VL  - 197
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2006_197_7_a4/
LA  - en
ID  - SM_2006_197_7_a4
ER  -