@article{GDZPPN001170457,
title = {On the Computation of Inclusion Regions for Partitioned Matrices.},
journal = {Numerische Mathematik},
volume = {19},
year = {1972},
pages = {238-247},
zbl = {0227.65026},
url = {http://dml.mathdoc.fr/item/GDZPPN001170457}
}
Johnston, R.L.; Olesky, D.D. On the Computation of Inclusion Regions for Partitioned Matrices.. Numerische Mathematik, Tome 19 (1972) pp. 238-247. http://gdmltest.u-ga.fr/item/GDZPPN001170457/