%0 Journal Article %A Gonska, Heiner %A Păltănea, Radu %T Simultaneous approximation by a class of Bernstein-Durrmeyer operators preserving linear functions %J Czechoslovak Mathematical Journal %D 2010 %P 783-799 %V 60 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2010__60_3_a12/ %G en %F CMJ_2010__60_3_a12