BAYDAS, S.; KARAKAS, B. An Umbrella Surface in \(\mathbb{R}^{3}\) as An Orbit Surface. Journal of Informatics and Mathematical Sciences, [S. l.], v. 10, n. 1-2, p. 45–53, 2018. DOI: 10.26713/jims.v10i1-2.680. Disponível em: http://rgnpublications.com/journals/index.php/jims/article/view/680. Acesso em: 28 apr. 2024.