@article{10_4171_ggd_14,
     author = {Michael W. Davis and Tadeusz Januszkiewicz and Ian J. Leary},
     title = {The $\ell^2$-cohomology of hyperplane complements},
     journal = {Groups, geometry, and dynamics},
     pages = {301--309},
     year = {2007},
     volume = {1},
     number = {3},
     doi = {10.4171/ggd/14},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/14/}
}