MILNOR, J. On total curvatures of closed space curves. MATHEMATICA SCANDINAVICA, [S. l.], v. 1, p. 289–296, 1953. DOI: 10.7146/math.scand.a-10387. Disponível em: https://www.mscand.dk/article/view/10387. Acesso em: 24 nov. 2024.