Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1964__6_131623, author = {R.S. VARGA}, title = {On {Smallest} {Isolated} {Gerschgorin} {Disks} for {Eigenvalues.}}, journal = {Numerische Mathematik}, pages = {366--376}, publisher = {mathdoc}, volume = {6}, year = {1964}, zbl = {0131.14204}, url = {http://geodesic.mathdoc.fr/item/NUMA_1964__6_131623/} }
R.S. VARGA. On Smallest Isolated Gerschgorin Disks for Eigenvalues.. Numerische Mathematik, Tome 6 (1964), pp. 366-376. http://geodesic.mathdoc.fr/item/NUMA_1964__6_131623/