@article{10_4171_ggd_614,
     author = {Yongle Jiang and Adam Skalski},
     title = {Maximal subgroups and von {Neumann} subalgebras with the {Haagerup} property},
     journal = {Groups, geometry, and dynamics},
     pages = {849--892},
     year = {2021},
     volume = {15},
     number = {3},
     doi = {10.4171/ggd/614},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/614/}
}