ZHANG, Y.; LUKYANENKO, D.; YAGOLA, A. Using Lagrange principle for solving linear ill-posed problems with a priori information. Numerical Methods and Programming (Vychislitel’nye Metody i Programmirovanie), [S. l.], v. 14, n. 38, p. 468–482, 2013. Disponível em: https://en.num-meth.ru/index.php/journal/article/view/658. Acesso em: 24 apr. 2024.