@article{GDZPPN00233268X, title = {Amenable group actions on infinite graphs.}, journal = {Mathematische Annalen}, volume = {283}, year = {1989}, pages = {251-266}, zbl = {0648.43002}, url = {http://dml.mathdoc.fr/item/GDZPPN00233268X} }
Woess, Wolfgang. Amenable group actions on infinite graphs.. Mathematische Annalen, Tome 283 (1989) pp. 251-266. http://gdmltest.u-ga.fr/item/GDZPPN00233268X/