@article{10_4171_ggd_366,
     author = {{\L}ukasz Grabowski},
     title = {Irrational $l^2$ invariants arising from the lamplighter group},
     journal = {Groups, geometry, and dynamics},
     pages = {795--817},
     year = {2016},
     volume = {10},
     number = {2},
     doi = {10.4171/ggd/366},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/366/}
}