%0 Journal Article %A Ross Stokke %T Approximate diagonals and Følner conditions for amenable group and semigroup algebras %J Studia Mathematica %D 2004 %P 139-159 %V 164 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm164-2-3/ %R 10.4064/sm164-2-3 %G fr %F 10_4064_sm164_2_3