POTEMKIN, V. L.; RYAZANOV, V. I. On the noncompactness of classes of mappings with restrictions on dilation in measure. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 50, n. 11, p. 1522–1531, 1998. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4804. Acesso em: 5 dec. 2025.