%0 Journal Article %A Ewa Damek %T Maximal functions related to subelliptic operators invariant under an action of a solvable Lie group %J Studia Mathematica %D 1991 %P 33-68 %V 101 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-101-1-33-68/ %R 10.4064/sm-101-1-33-68 %G en %F 10_4064_sm_101_1_33_68