TY  - JOUR
AU  - V. V. Ostapenko
TI  - Divergence of difference operators that are defined on an
JO  - Doklady Akademii Nauk
PY  - 1989
SP  - 1295
EP  - 1298
VL  - 304
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1989_304_6_a2/
LA  - ru
ID  - DAN_1989_304_6_a2
ER  -