Grebenуuk V. S. Application of the majorant principle to a class of iterational processes. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 18, n. 4, p. 102–106, 1966. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8317. Acesso em: 6 dec. 2025.