MARKISH, A. A.; SALIMOV, R. R.; SEVOST'YANOV, E. A. On the lower estimate of the distortion of distance for one class of mappings. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 11, p. 1553–1562, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1659. Acesso em: 5 dec. 2025.