Geodesic
Strongly regular graphs with parameters $(243,66,9,21)$ is not edge symmetric
Sibirskie èlektronnye matematičeskie izvestiâ, Tome 7 (2010), pp. 155-161.

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The early possible usages and subgraphs of motionless points of automorphisms of strongly regular graphs with parameters $(243,66,9,21)$ have been found. In this work it is proved that this graphs is not rid symmetric.
Keywords: strongly regular graphs, group of automorphisms. 
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A. A. Tokbaeva. Strongly regular graphs with parameters $(243,66,9,21)$ is not edge symmetric. Sibirskie èlektronnye matematičeskie izvestiâ, Tome 7 (2010), pp. 155-161. http://geodesic.mathdoc.fr/item/SEMR_2010_7_a16/

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