@article{05602052,
title = {The structured distance to normality of an irreducible real tridiagonal matrix.},
journal = {ETNA. Electronic Transactions on Numerical Analysis [electronic only]},
volume = {26},
year = {2007},
pages = {65-77},
zbl = {1171.65037},
language = {en},
url = {http://dml.mathdoc.fr/item/05602052}
}
Noschese, S.; Pasquini, L.; Reichel, L. The structured distance to normality of an irreducible real tridiagonal matrix.. ETNA. Electronic Transactions on Numerical Analysis [electronic only], Tome 26 (2007) pp. 65-77. http://gdmltest.u-ga.fr/item/05602052/