TY  - JOUR
AU  - V. I. Ryazanov
TI  - On the accuracy of some convergence theorems
JO  - Doklady Akademii Nauk
PY  - 1990
SP  - 317
EP  - 319
VL  - 315
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1990_315_2_a14/
LA  - ru
ID  - DAN_1990_315_2_a14
ER  -