SHOR , A. A.; SHOR , A. E. Characterization of residual σ-algebras . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 8, p. 1149–1152, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8052. Acesso em: 5 dec. 2025.