@article{MASLO_1997__47_3_a7,
     author = {Jajte, Ryszard},
     title = {On some versions of {Jensen's} inequality on operator algebras},
     journal = {Mathematica slovaca},
     pages = {303--311},
     publisher = {mathdoc},
     volume = {47},
     number = {3},
     year = {1997},
     mrnumber = {1796334},
     zbl = {1053.47505},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1997__47_3_a7/}
}