ETEMAD, Dehkordy A. A study on tensor product surfaces in low-dimensional Euclidean spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 64, n. 12, p. 1630–1640, 2012. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2687. Acesso em: 14 apr. 2025.