TY  - JOUR
AU  - I. E. Kaporin
TI  - Two-level explicit preconditionings for the conjugate gradient method
JO  - Differencialʹnye uravneniâ
PY  - 1992
SP  - 329
EP  - 339
VL  - 28
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1992_28_2_a16/
LA  - ru
ID  - DE_1992_28_2_a16
ER  -