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@article{NUMA_1973__21_132248, author = {Ludwig Elsner}, title = {A {Remark} on {Simultaneous} {Inclusions} of the {Zeros} of a {Polynomial} by {Gershgorin's} {Theorem.}}, journal = {Numerische Mathematik}, pages = {425--427}, publisher = {mathdoc}, volume = {21}, year = {1973}, zbl = {0267.65037}, url = {http://geodesic.mathdoc.fr/item/NUMA_1973__21_132248/} }
Ludwig Elsner. A Remark on Simultaneous Inclusions of the Zeros of a Polynomial by Gershgorin's Theorem.. Numerische Mathematik, Tome 21 (1973), pp. 425-427. http://geodesic.mathdoc.fr/item/NUMA_1973__21_132248/