Siu Lun Ma. Schur rings and cyclic association schemes of class three. Graphs and Combinatorics, 5(1):355-361, 1989. [doi]
@article{Ma89, title = {Schur rings and cyclic association schemes of class three}, author = {Siu Lun Ma}, year = {1989}, doi = {10.1007/BF01788691}, url = {http://dx.doi.org/10.1007/BF01788691}, researchr = {https://researchr.org/publication/Ma89}, cites = {0}, citedby = {0}, journal = {Graphs and Combinatorics}, volume = {5}, number = {1}, pages = {355-361}, }