1. Design Theory;Beth,1999
2. Combinatorics: Set Systems, Hypergraphs, Families of Vectors, and Combinatorial Probability;Bollobás,1986
3. Spectra of Graphs;Brouwer,2012
4. Hamiltonian uniform subset graphs;Chen;J. Comb. Theory, Ser. B,1987
5. Algebraic Graph Theory;Godsil,2001