NOREDDIN, M. M.; TIKHONENKO, N. Ya. Approximate solution of singular integral first type equations by the method of orthogonal polynomials . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 40, n. 1, p. 124–127, 1987. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/9070. Acesso em: 5 dec. 2025.