ABDULLAYEV, S. K.; MAMMADOV, E. A. On a class of sublinear operators with a generalized shift. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 72, n. 1, p. 3–19, 2020. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/209. Acesso em: 7 apr. 2025.