%0 Journal Article
%A K. S. Efimov
%T A graph with intersection array 18, 15, 1; 1, 5, 18 is not vertex-symmetric
%J Trudy Instituta matematiki i mehaniki
%D 2018
%P 62-67
%V 24
%N 3
%U http://geodesic.mathdoc.fr/item/TIMM_2018_24_3_a6/
%G ru
%F TIMM_2018_24_3_a6