@article{TIMM_1996_4_a24,
     author = {N. I. Potanin},
     title = {Some properties of labelled simple graphs},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {345--367},
     publisher = {mathdoc},
     volume = {4},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_1996_4_a24/}
}