ONDER, M.; UGURLU, H. H. . Dual Darboux Frame of a Spacelike Ruled Surface and Darboux Approach to Mannheim Offsets of Spacelike Ruled Surfaces. Natural Science and Discovery, [S. l.], v. 1, n. 1, p. 29–41, 2015. DOI: 10.20863/nsd.v1i1.6. Disponível em: https://natscidiscovery.com/index.php/nsd/article/view/6. Acesso em: 25 apr. 2024.