@article{02247391, title = {Amenable actions of nonamenable groups.}, journal = {Zapiski Nauchnykh Seminarov POMI}, volume = {321}, year = {2005}, pages = {85-96}, zbl = {1127.43001}, language = {en}, url = {http://dml.mathdoc.fr/item/02247391} }
Grigorchuk, R.I.; Nekrashevych, V.Yu. Amenable actions of nonamenable groups.. Zapiski Nauchnykh Seminarov POMI, Tome 321 (2005) pp. 85-96. http://gdmltest.u-ga.fr/item/02247391/