Darvishi Khezri, S., Rabbani, M., Arab, R., & Dadashi, V. (2026). Solvability of two-dimensional nonlinear singular Volterra integral equations with fractional order in Banach space and approximation of the solution of it. Mathematical Modelling and Analysis, 31(3), 407–430. https://doi.org/10.3846/mma.2026.24019