@article{GDZPPN001166255,
title = {Matrix Inequalities.},
journal = {Numerische Mathematik},
volume = {9},
year = {1966},
pages = {109-119},
zbl = {0148.25903},
url = {http://dml.mathdoc.fr/item/GDZPPN001166255}
}
FIEDLER, M. Matrix Inequalities.. Numerische Mathematik, Tome 9 (1966) pp. 109-119. http://gdmltest.u-ga.fr/item/GDZPPN001166255/