@article{AFST_2021_6_30_5_1121_0,
     author = {Damien Gaboriau and Camille No\^us},
     title = {On the top-dimensional $\ell ^2${-Betti} numbers},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {1121--1137},
     publisher = {Universit\'e Paul Sabatier, Toulouse},
     volume = {Ser. 6, 30},
     number = {5},
     year = {2021},
     doi = {10.5802/afst.1695},
     language = {en},
     url = {https://afst.centre-mersenne.org/articles/10.5802/afst.1695/}
}