1. Gauss and Jacobi Sums;Berndt,1997
2. Design Theory, vol. I;Beth,1999
3. Spectra of Graphs;Brouwer,2012
4. A new infinite family of hemisystems of the Hermitian surface;Bamberg;Combinatorica,2017
5. The geometry of two-weight codes;Calderbank;Bull. Lond. Math. Soc.,1986