@article{GDZPPN002042436,
title = {Spectral variation bounds for diagonalisable matrices.},
journal = {Aequationes mathematicae},
volume = {53},
year = {1997},
pages = {102-107},
zbl = {0897.15007},
url = {http://dml.mathdoc.fr/item/GDZPPN002042436}
}
Bhatia, R.; Elsner, L.; Krause, G.M. Spectral variation bounds for diagonalisable matrices.. Aequationes mathematicae, Tome 53 (1997) pp. 102-107. http://gdmltest.u-ga.fr/item/GDZPPN002042436/