@article{GDZPPN001166735,
title = {A Generalization of a Theorem of Fan on Gershgorin Disks.},
journal = {Numerische Mathematik},
volume = {10},
year = {1967},
pages = {162-162},
zbl = {0158.03504},
url = {http://dml.mathdoc.fr/item/GDZPPN001166735}
}
STEWART, G.W.III. A Generalization of a Theorem of Fan on Gershgorin Disks.. Numerische Mathematik, Tome 10 (1967) p. 162. http://gdmltest.u-ga.fr/item/GDZPPN001166735/