@article{TIMM_2014_20_2_a24,
     author = {V. I. Trofimov},
     title = {Some remarks on symmetrical extensions of graphs},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {284--293},
     year = {2014},
     volume = {20},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2014_20_2_a24/}
}