@article{AM2_1991__41_2-3_137396,
     author = {J.K. Baksalary and S. Puntanen},
     title = {Generalized matrix versions of the {Cauch-Schwarz} and {Kantorovich} inequalities.},
     journal = {Aequationes mathematicae},
     pages = {103--110},
     publisher = {mathdoc},
     volume = {41},
     number = {2-3},
     year = {1991},
     zbl = {0723.15017},
     url = {http://geodesic.mathdoc.fr/item/AM2_1991__41_2-3_137396/}
}