TURGAY, Nurettin Cenk. On the Quasi-Minimal Surfaces in the 4-Dimensional de Sitter Space With 1-Type Gauss Map. Sarajevo Journal of Mathematics, [S. l.], v. 11, n. 1, p. 109–116, 2015. DOI: 10.5644/SJM.11.1.09. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/471. Acesso em: 25 dec. 2025.