@article{GDZPPN001166093,
title = {Diagonal Similarity Transformations which Isolate Gerschgorin Disks.},
journal = {Numerische Mathematik},
volume = {9},
year = {1966},
pages = {437-443},
zbl = {0145.25102},
url = {http://dml.mathdoc.fr/item/GDZPPN001166093}
}
PORSCHING, T.A. Diagonal Similarity Transformations which Isolate Gerschgorin Disks.. Numerische Mathematik, Tome 9 (1966) pp. 437-443. http://gdmltest.u-ga.fr/item/GDZPPN001166093/