@article{10_2140_agt_2016_16_2549,
     author = {Okun, Boris and Schreve, Kevin},
     title = {The {L2{\textendash}(co)homology} of groups with hierarchies},
     journal = {Algebraic and Geometric Topology},
     pages = {2549--2569},
     year = {2016},
     volume = {16},
     number = {5},
     doi = {10.2140/agt.2016.16.2549},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2016.16.2549/}
}