STOROZH, O. G.; SHUVAR, O. B. On One Class of Almost Bounded Perturbations of Smooth Restrictions of a Closed Operator. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 10, p. 1396–1402, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4177. Acesso em: 5 dec. 2025.