@article{ADM_2003_1_a6,
     author = {Volodymyr Nekrashevych},
     title = {Hyperbolic spaces from self-similar group actions},
     journal = {Algebra and discrete mathematics},
     pages = {77--86},
     publisher = {mathdoc},
     number = {1},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2003_1_a6/}
}