@article {29332,
	title = {Algebraic actions of discrete groups: the p-adic method},
	journal = {Acta Mathematica},
	volume = { 220(2)},
	year = {2018},
	note = {( long version)},
	pages = {239-295},
	url = {http://scholar.pku.edu.cn/sites/default/files/xiejunyi/files/newslnweb.pdf},
	author = {Serge Cantat and Junyi Xie}
}
