@article{AL_1998_37_3_a7,
     author = {A. V. Rozhkov},
     title = {Metric relations in groups of tree automorphisms},
     journal = {Algebra i logika},
     pages = {338--357},
     publisher = {mathdoc},
     volume = {37},
     number = {3},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1998_37_3_a7/}
}