Darafsheh, M. R., and R. Kahkeshani. “Ternary Codes from Primitive Representations of the Group <i>PSL₂(9)</i> And a New 2-(15,7,36) Design”. The Journal of the Indian Mathematical Society, vol. 89, no. 1-2, Jan. 2022, pp. 19–31, doi:10.18311/jims/2022/23538.