TY  - JOUR
AU  - K. S. Efimov
TI  - A graph with intersection array 18, 15, 1; 1, 5, 18 is not vertex-symmetric
JO  - Trudy Instituta matematiki i mehaniki
PY  - 2018
SP  - 62
EP  - 67
VL  - 24
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/TIMM_2018_24_3_a6/
LA  - ru
ID  - TIMM_2018_24_3_a6
ER  -