%0 Journal Article %A Jiecheng Chen %A Xiangrong Zhu %T A note on the strong maximal operator on ${\Bbb R}^n$ %J Studia Mathematica %D 2004 %P 291-294 %V 165 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm165-3-6/ %R 10.4064/sm165-3-6 %G en %F 10_4064_sm165_3_6