@article{BMMS_2012_35_1_a0,
     author = {Mario Krnic and Neda Lovricevic and Josip Pecaric},
     title = {Jensen's {Operator} and {Applications} to {Mean} {Inequalities} for {Operators} in {Hilbert} {Space}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2012},
     volume = {35},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2012_35_1_a0/}
}