@article{10_4171_ggd_456,
     author = {Lewis Bowen and Daniel Hoff and Adrian Ioana},
     title = {von {Neumann{\textquoteright}s} problem and extensions of non-amenable equivalence relations},
     journal = {Groups, geometry, and dynamics},
     pages = {399--448},
     year = {2018},
     volume = {12},
     number = {2},
     doi = {10.4171/ggd/456},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/456/}
}