Lepović, Mirko. “On Strongly Regular Graphs With M2 = Qm3 and M3 = Qm2 for Q = 7 2, 7 3, 7 4, 7 5, 7 6”. Yugoslav Journal of Operations Research, vol. 31, no. 3, Aug. 2021, pp. 373-88, doi:10.2298/YJOR200418029L.