HAJLASZ, P.; SCHIKORRA, A. Lipschitz homotopy and density of Lipschitz mappings in Sobolev spaces. Annales Fennici Mathematici, [S. l.], v. 39, n. 2, p. 593–604, 2014. DOI: 10.5186/aasfm.2014.3932. Disponível em: https://afm.journal.fi/article/view/135503. Acesso em: 22 nov. 2024.