%0 Journal Article %A Waldemar Hebisch %T Boundedness of $L^1$ spectral multipliers for an exponential solvable Lie group %J Colloquium Mathematicum %D 1997 %P 155-164 %V 73 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-73-1-155-164/ %R 10.4064/cm-73-1-155-164 %G en %F 10_4064_cm_73_1_155_164