PEREVERZEVA, G. A. Projection methods for the solution of Fredholm integral equations of the first kind with $(ϕ, β)$-differentiable kernels and random errors. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 5, p. 713–717, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4657. Acesso em: 14 apr. 2025.