%0 Journal Article %A Heinig, Hans P. %T Modular inequalities for the Hardy averaging operator %J Mathematica Bohemica %D 1999 %P 231-244 %V 124 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.1999.126254/ %R 10.21136/MB.1999.126254 %G en %F 10_21136_MB_1999_126254