@article{PDM_2010_12_a49,
     author = {A. V. Prolubnikov},
     title = {On a~new complete invariant for acyclic graphs},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {97--98},
     publisher = {mathdoc},
     number = {12},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2010_12_a49/}
}