@article{TRSPY_2004_245_a18,
     author = {S. K. Nechaev and O. A. Vasil'ev},
     title = {On the {Metric} {Structure} of {Ultrametric} {Spaces}},
     journal = {Informatics and Automation},
     pages = {182--201},
     publisher = {mathdoc},
     volume = {245},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2004_245_a18/}
}