1. Cyclic Difference Sets;Baumert,1971
2. Orthogonal matrices with zero diagonal II;Delsarte;Canad. J. Math.,1971
3. A List of v,b,r,k,λ) designs for r⩽30;Di Paola;Proc. 4th S.E. Conf. on Combinatorics, Graph Theory and Computing,1973
4. Orthogonal designs, quadratic forms and Hadamard matrices;Geramita,1979
5. Combinatorial Theory;Hall,1967