TY - JOUR AU - O. P. Kirilyuk TI - Iterative refinement of a solution of systems of linear equations JO - Matematičeskie trudy PY - 1990 SP - 5 EP - 18 VL - 17 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MT_1990_17_a0/ LA - ru ID - MT_1990_17_a0 ER -