TY  - JOUR
AU  - I. E. Kaporin
TI  - Preconditioning of the method of conjugate gradients for solving discrete analogues of differential problems
JO  - Differencialʹnye uravneniâ
PY  - 1990
SP  - 1225
EP  - 1236
VL  - 26
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1990_26_7_a14/
LA  - ru
ID  - DE_1990_26_7_a14
ER  -