Geodesic
On automorphisms of strongly regular graph with parameters $(396,135,30,54)$
Vladikavkazskij matematičeskij žurnal, Tome 12 (2010) no. 3, pp. 30-40 Cet article a éte moissonné depuis la source Math-Net.Ru

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We found the possible orders and the structures of subgraphs of the fixed points of automorphisms of strongly regular graph with parameters $(396,135,30,54)$. These results can be used to study automorphisms of strongly regular graph with parameters $(640,243,66,108)$ (in such a graph the second neighborhood of vertices are strongly regular with parameters $(396,135,30,54)$). 
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M. M. Isakova; A. A. Makhnev. On automorphisms of strongly regular graph with parameters $(396,135,30,54)$. Vladikavkazskij matematičeskij žurnal, Tome 12 (2010) no. 3, pp. 30-40. http://geodesic.mathdoc.fr/item/VMJ_2010_12_3_a2/

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