Haddam, Q. Hadi, , Najafi, E. , and Sohrabi, S. . "Jacobi collocation method for numerical solution of nonlinear weakly singular Volterra integro-differential equations: fractional and stochastic cases", Computational Methods for Differential Equations, 13, 3, 2025, 742-757. doi: 10.22034/cmde.2024.63023.2800