Relationship Between the Stiffly Weighted Pseudoinverse and Multi-Level Constrained Rseudoinverse. Journal of Computational Mathematics, [S. l.], v. 22, n. 3, p. 427–436, 2004. Disponível em: https://gsp.tricubic.dev/JCM/article/view/11642. Acesso em: 15 mar. 2026.