Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{NUMA_1966__9_131732, author = {M. FIEDLER}, title = {Matrix {Inequalities.}}, journal = {Numerische Mathematik}, pages = {109--119}, publisher = {mathdoc}, volume = {9}, year = {1966}, zbl = {0148.25903}, url = {http://geodesic.mathdoc.fr/item/NUMA_1966__9_131732/} }
M. FIEDLER. Matrix Inequalities.. Numerische Mathematik, Tome 9 (1966), pp. 109-119. http://geodesic.mathdoc.fr/item/NUMA_1966__9_131732/