@article{CRMATH_2017__355_10_1037_0,
     author = {Gardella, Eusebio and Lupini, Martino},
     title = {On the classification problem of free ergodic actions of nonamenable groups},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1037--1040},
     publisher = {Elsevier},
     volume = {355},
     number = {10},
     year = {2017},
     doi = {10.1016/j.crma.2017.10.004},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2017.10.004/}
}