TY  - JOUR
AU  - H. Ya. Bulgakov
TI  - Justification of guaranteed accuracy for identifying invariant subspaces of nonselfadjoint matrices
JO  - Matematičeskie trudy
PY  - 1989
SP  - 12
EP  - 93
VL  - 15
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MT_1989_15_a1/
LA  - ru
ID  - MT_1989_15_a1
ER  -