Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1970__16_132014, author = {R.L. JOHNSTON and B.T. SMITH}, title = {Calculation of {Best} {Isolated} {Gerschgorin} {Discs.}}, journal = {Numerische Mathematik}, pages = {22--31}, publisher = {mathdoc}, volume = {16}, year = {1970}, zbl = {0191.44702}, url = {http://geodesic.mathdoc.fr/item/NUMA_1970__16_132014/} }
R.L. JOHNSTON; B.T. SMITH. Calculation of Best Isolated Gerschgorin Discs.. Numerische Mathematik, Tome 16 (1970), pp. 22-31. http://geodesic.mathdoc.fr/item/NUMA_1970__16_132014/