@article{GDZPPN001165402,
title = {On Smallest Isolated Gerschgorin Disks for Eigenvalues.},
journal = {Numerische Mathematik},
volume = {7},
year = {1965},
pages = {171-175},
zbl = {0148.01703},
url = {http://dml.mathdoc.fr/item/GDZPPN001165402}
}
TODD, J. On Smallest Isolated Gerschgorin Disks for Eigenvalues.. Numerische Mathematik, Tome 7 (1965) pp. 171-175. http://gdmltest.u-ga.fr/item/GDZPPN001165402/