PHAM, Ky Anh. Coordinated approximation method for nonlinear ill-posed problems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 46, n. 7, p. 956–961, 1994. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5690. Acesso em: 5 dec. 2025.