RANJBAR, A. . Estimate for the Arithmetical Cost of an Algebraic Multigrid Preconditioner. Mathematical Problems of Computer Science, [S. l.], v. 33, p. 172–182, 2021. Disponível em: https://mpcs.sci.am/index.php/mpcs/article/view/346. Acesso em: 3 apr. 2025.