SHEVCHIK, V. V. Properties of restrictions of the operator of multiplication by a continuous function. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 47, n. 12, p. 1720–1722, 1995. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5570. Acesso em: 5 dec. 2025.