@article{TIMM_2018_24_3_a6,
     author = {K. S. Efimov},
     title = {A graph with intersection array 18, 15, 1; 1, 5, 18 is not vertex-symmetric},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {62--67},
     year = {2018},
     volume = {24},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2018_24_3_a6/}
}