TY  - JOUR
AU  - Ji-guang Sun
TI  - Backward perturbation analysis of certian characteristic subspaces.
JO  - Numerische Mathematik
PY  - 1993
SP  - 357
EP  - 382
VL  - 65
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/NUMA_1993__65_4_133740/
ID  - NUMA_1993__65_4_133740
ER  -