HAKOBYAN, H.; HERRON, D. A. Euclidean quasiconvexity. Annales Fennici Mathematici, [S. l.], v. 33, n. 1, p. 205–230, 2008. Disponível em: https://afm.journal.fi/article/view/135226. Acesso em: 21 may. 2024.