GALBA, E. F. Weighted pseudoinversion of matrices with singular weights. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 46, n. 10, p. 1323–1327, 1994. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5610. Acesso em: 6 dec. 2025.