Sathiyanathan, K., et al. “Three-Point Multi-Term Fractional Integral Boundary Value Problems of Fractional Functional Differential Equations With Delay”. Discontinuity, Nonlinearity, and Complexity, vol. 7, no. 1, Aug. 2026, pp. 107-18, https://doi.org/10.5890/DNC.2018.03.009.