%0 Journal Article %A Ɓukasz Grabowski %T Irrational $l^2$ invariants arising from the lamplighter group %J Groups, geometry, and dynamics %D 2016 %P 795-817 %V 10 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4171/ggd/366/ %R 10.4171/ggd/366 %F 10_4171_ggd_366