%0 Journal Article %A M. Becker %A P. Butzer %A R. Nessel %T Saturation for Farvard operators in weighted function spaces %J Studia Mathematica %D 1976 %P 139-153 %V 59 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-59-2-139-153/ %R 10.4064/sm-59-2-139-153 %G en %F 10_4064_sm_59_2_139_153