Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1989__56_2-3_133416, author = {A. Deif}, title = {A {Relative} {Backward} {Perturbation} {Theorem} for the {Eigenvalue} {Problem.}}, journal = {Numerische Mathematik}, pages = {625--626}, publisher = {mathdoc}, volume = {56}, number = {2-3}, year = {1989}, zbl = {0686.65014}, url = {http://geodesic.mathdoc.fr/item/NUMA_1989__56_2-3_133416/} }
A. Deif. A Relative Backward Perturbation Theorem for the Eigenvalue Problem.. Numerische Mathematik, Tome 56 (1989) no. 2-3, pp. 625-626. http://geodesic.mathdoc.fr/item/NUMA_1989__56_2-3_133416/