SEVOST’YANOV, E. A. On Poletsky type inequality for mappings of Riemannian surfaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 72, n. 5, p. 705–720, 2020. DOI: 10.37863/umzh.v72i5.2292. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2292. Acesso em: 7 dec. 2025.