@article{MZM_2001_69_2_a18,
     author = {V. I. Trofimov},
     title = {On a {Property} of {Urysohn's} {Universal} {Metric} {Space}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {319--320},
     publisher = {mathdoc},
     volume = {69},
     number = {2},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2001_69_2_a18/}
}