@article{DM_2005_17_2_a12,
     author = {V. A. Kolmykov},
     title = {On stable and unstable trees},
     journal = {Diskretnaya Matematika},
     pages = {150--152},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2005_17_2_a12/}
}