%0 Journal Article %A Jajte, Ryszard %T On some versions of Jensen's inequality on operator algebras %J Mathematica slovaca %D 1997 %P 303-311 %V 47 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1997__47_3_a7/ %G en %F MASLO_1997__47_3_a7