@article{GDZPPN002038277, title = {Matrix versions of the Cauchy and Kantorovich inequalities.}, journal = {Aequationes mathematicae}, volume = {40}, year = {1990}, pages = {89-93}, zbl = {0706.15019}, url = {http://dml.mathdoc.fr/item/GDZPPN002038277} }
Marshall, A.W.; Olkin, I. Matrix versions of the Cauchy and Kantorovich inequalities.. Aequationes mathematicae, Tome 40 (1990) pp. 89-93. http://gdmltest.u-ga.fr/item/GDZPPN002038277/