%0 Journal Article %A H. P. Heinig %A %T Mapping properties of integral averaging operators %J Studia Mathematica %D 1998 %P 157-177 %V 129 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-129-2-157-177/ %R 10.4064/sm-129-2-157-177 %G en %F 10_4064_sm_129_2_157_177