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[文献書誌] Akira Hirari: "A characterization of the doubled Grassmann graphs, the doubled Odd graphs, and the Odd graphs by strongly closed subgraphs."European Journal of Combin. 24. 161-171 (2003)
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[文献書誌] Akira Hirari: "The number of columns (1,k-2,1) in the intersection array of a distance-regular graph"Graphs and Combinatorics. 19. 371-387 (2003)
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[文献書誌] Akira Hirari: "A distance-regular graph with bipartite geodetically closed subgraphs"European Journal of Combin. 24. 349-363 (2003)
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[文献書誌] A.Hirari, J.J.Koolen: "A Higman-Haemers inequality for thick regular near polygons"Journal of Algebraic Combinatorics.
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[文献書誌] A.Hirari, J.J.Koolen: "The regular near polygons of order (s,2)"Journal of Algebraic Combinatorics.