James A. Davis, John B. Polhill. Difference set constructions of DRADs and association schemes. Journal of Combinatorial Theory, Series A, 117(5):598-605, 2010. [doi]
@article{DavisP10, title = {Difference set constructions of DRADs and association schemes}, author = {James A. Davis and John B. Polhill}, year = {2010}, doi = {10.1016/j.jcta.2009.11.007}, url = {http://dx.doi.org/10.1016/j.jcta.2009.11.007}, researchr = {https://researchr.org/publication/DavisP10}, cites = {0}, citedby = {0}, journal = {Journal of Combinatorial Theory, Series A}, volume = {117}, number = {5}, pages = {598-605}, }