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@article{NUMA_1970__16_132049, author = {H.L MEDLEY}, title = {A {Note} on a {Paper} of {Johnston} and {Smith's} {Concerning} {Best} {Isolated} {Gerschgorin} {Disks.}}, journal = {Numerische Mathematik}, pages = {435--441}, publisher = {mathdoc}, volume = {16}, year = {1970}, zbl = {0198.20901}, url = {http://geodesic.mathdoc.fr/item/NUMA_1970__16_132049/} }
H.L MEDLEY. A Note on a Paper of Johnston and Smith's Concerning Best Isolated Gerschgorin Disks.. Numerische Mathematik, Tome 16 (1970), pp. 435-441. http://geodesic.mathdoc.fr/item/NUMA_1970__16_132049/