Light-like Extremal Surfaces in Minkowski Space R1+(1+n). Journal of Partial Differential Equations, [S. l.], v. 23, n. 2, p. 158–167, 2010. DOI: 10.4208/jpde.v23.n2.3. Disponível em: https://gsp.tricubic.dev/jpde/article/view/4160. Acesso em: 15 mar. 2026.