VERSHININ, R. V. Imbedding of the images of operators and reflexivity of Banach spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 2, p. 260–262, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4606. Acesso em: 5 dec. 2025.