@article{CMJ_2007__57_2_a2,
     author = {Lashkaripour, R. and Foroutannia, D.},
     title = {Some inequalities involving upper bounds for some matrix operators. {I}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {553--572},
     publisher = {mathdoc},
     volume = {57},
     number = {2},
     year = {2007},
     mrnumber = {2337614},
     zbl = {1174.15017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2007__57_2_a2/}
}