AllouchC., ArraiM., BoudaH., and TahrichiM. “Legendre Superconvergent Degenerate Kernel and Nyström Methods for Nonlinear Integral Equations”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 75, no. 5, May 2023, pp. 579 -5, doi:10.37863/umzh.v75i5.7039.