TY  - JOUR
AU  - V. G. Prikazchikov
AU  - G. K. Berikelashvili
TI  - Schemes of increased accuracy for an elliptic equation with a mixed derivative
JO  - Differencialʹnye uravneniâ
PY  - 1989
SP  - 1622
EP  - 1624
VL  - 25
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1989_25_9_a24/
LA  - ru
ID  - DE_1989_25_9_a24
ER  -