Preconditioned Conjugate Gradient Methods for Integral Equations of the Second Kind Defined on the Half-Line. Journal of Computational Mathematics, [S. l.], v. 14, n. 3, p. 223–236, 1996. Disponível em: https://gsp.tricubic.dev/JCM/article/view/11212. Acesso em: 14 mar. 2026.