@article{IM2_1994_43_3_a4,
     author = {A. V. Rozhkov},
     title = {Centralizers of elements in a group of tree automorphisms},
     journal = {Izvestiya. Mathematics },
     pages = {471--492},
     publisher = {mathdoc},
     volume = {43},
     number = {3},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1994_43_3_a4/}
}