@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/