Luchkа A. Yu. On speed of convergence of some projection methods for linear operator equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 23, n. 3, p. 307–317, 1971. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8559. Acesso em: 5 dec. 2025.