AMINOV, Yu. A. On 2-dimensional surfaces in 3-dimensional and 4-dimensional Euclidean spaces. Results and unsolved problems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 1, p. 3–36, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1416. Acesso em: 14 apr. 2025.