@article{10_4171_ggd_198,
     author = {Cyril Houdayer and Sorin Popa and Stefaan Vaes},
     title = {A class of groups for which every action is {W}$^*$-superrigid},
     journal = {Groups, geometry, and dynamics},
     pages = {577--590},
     year = {2013},
     volume = {7},
     number = {3},
     doi = {10.4171/ggd/198},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/198/}
}