@article{GDZPPN001183567,
title = {A Relative Backward Perturbation Theorem for the Eigenvalue Problem.},
journal = {Numerische Mathematik},
volume = {56},
year = {1989},
pages = {625-626},
zbl = {0686.65014},
url = {http://dml.mathdoc.fr/item/GDZPPN001183567}
}
Deif, A. A Relative Backward Perturbation Theorem for the Eigenvalue Problem.. Numerische Mathematik, Tome 56 (1989) pp. 625-626. http://gdmltest.u-ga.fr/item/GDZPPN001183567/