@article{10_4153_CMB_2004_021_1,
     author = {Jaworski, Wojciech},
     title = {Countable {Amenable} {Identity} {Excluding} {Groups}},
     journal = {Canadian mathematical bulletin},
     pages = {215--228},
     year = {2004},
     volume = {47},
     number = {2},
     doi = {10.4153/CMB-2004-021-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2004-021-1/}
}