TY  - JOUR
AU  - I. A. Blatov
AU  - V. V. Strygin
TI  - Estimates that are unimprovable with respect to order in
JO  - Doklady Akademii Nauk
PY  - 1993
SP  - 424
EP  - 426
VL  - 328
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1993_328_4_a1/
LA  - ru
ID  - DAN_1993_328_4_a1
ER  -