HUANG, Ting-Zhu; Wu Chi-Yе. Perturbation and error analyses of partitioned LU factorization for block tridiagonal linear systems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 68, n. 12, p. 1683–1695, 2016. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1953. Acesso em: 6 dec. 2025.