Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1971__18_132124, author = {Wm.L. Morris}, title = {Inclusion {Theorems} for a {Section} of a {Matrix.}}, journal = {Numerische Mathematik}, pages = {457--464}, publisher = {mathdoc}, volume = {18}, year = {1971}, zbl = {0245.15003}, url = {http://geodesic.mathdoc.fr/item/NUMA_1971__18_132124/} }
Wm.L. Morris. Inclusion Theorems for a Section of a Matrix.. Numerische Mathematik, Tome 18 (1971), pp. 457-464. http://geodesic.mathdoc.fr/item/NUMA_1971__18_132124/