IMANBAEV N.S. ON A TOPOLOGICAL METHOD FOR CALCULATING THE INDEX OF QUASI-SINGULAR INTEGRAL EQUATION. Известия НАН РК. Серия физико-математическая, [S. l.], n. 4, p. 143–150, 2021. Disponível em: http://91834.libg.asia/physics-mathematics/article/view/1916. Acesso em: 27 апр. 2025.