FARNANA, Z. Sobolev Spaces in Metric Spaces. The Libyan Journal of Science, [S. l.], v. 24, n. 1, p. 79–88, 2021. DOI: 10.55276/ljs.v24i1.96. Disponível em: https://uot.edu.ly/journals/index.php/ljs/article/view/96. Acesso em: 4 apr. 2025.