Hariharan, R., and R. . Udhayakumar. “Approximate Controllability for Fuzzy Fractional Evolution Equations of Order <i>ℓ</I> ∈ (1, 2)”. Contemporary Mathematics, vol. 5, no. 3, Aug. 2024, pp. 3287-12, doi:10.37256/cm.5320245162.