@article{GDZPPN001165151,
title = {On Smallest Isolated Gerschgorin Disks for Eigenvalues.},
journal = {Numerische Mathematik},
volume = {6},
year = {1964},
pages = {366-376},
zbl = {0131.14204},
url = {http://dml.mathdoc.fr/item/GDZPPN001165151}
}
VARGA, R.S. On Smallest Isolated Gerschgorin Disks for Eigenvalues.. Numerische Mathematik, Tome 6 (1964) pp. 366-376. http://gdmltest.u-ga.fr/item/GDZPPN001165151/