HOSSAIN, M. A. On Some Characterizations of Surfaces with Constant Curvature Zero. Journal of Bangladesh Academy of Sciences, [S. l.], v. 36, n. 1, p. 33–37, 2012. DOI: 10.3329/jbas.v36i1.10914. Disponível em: https://banglajol.info/index.php/JBAS/article/view/10914. Acesso em: 22 dec. 2024.