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Regular graphs with four eigenvalues
van Dam, Edwin Robert, (1994)
Bounds on separated pairs of subgraphs, eigenvalues and related polynomials
van Dam, Edwin Robert, (1995)
Interlacing eigenvalues and graphs
Haemers, W.H., (1994)
Which Graphs are Determined by their Spectrum?
van Dam, Edwin Robert, (2002)
Characterizing Distance-Regularity of Graphs by the Spectrum
van Dam, Edwin Robert, (2005)
Cospectral Graphs and the Generalized Adjacency Matrix
van Dam, Edwin Robert, (2006)