STRZELECKI, P.; SZUMANSKA, M.; VON DER MOSEL, H. A geometric curvature double integral of Menger type for space curves. Annales Fennici Mathematici, [S. l.], v. 34, n. 1, p. 195–214, 2009. Disponível em: https://afm.journal.fi/article/view/135261. Acesso em: 25 nov. 2024.