%0 Journal Article %A Pascal Lefèvre %T Essential norms of weighted composition operators on the space ${\cal H}^{\infty}$ of Dirichlet series %J Studia Mathematica %D 2009 %P 57-66 %V 191 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4064/sm191-1-4/ %R 10.4064/sm191-1-4 %G en %F 10_4064_sm191_1_4