Zhuk, P.F. and Musina, .A.A. (2013) “Asymptotic Rate of Convergence of a Two-Layer Iterative Method of the Variational Type”, Ukrains’kyi Matematychnyi Zhurnal, 65(12), pp. 1622–1635. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2541 (Accessed: 5 December 2025).