%0 Journal Article %A Richard Penney %A Roman Urban %T Estimates for the Poisson kernel on higher rank $NA$ groups %J Colloquium Mathematicum %D 2010 %P 259-281 %V 118 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm118-1-14/ %R 10.4064/cm118-1-14 %G en %F 10_4064_cm118_1_14