VELICHOVÁ, Daniela. Some Notes on Modelling and Intrinsic Geometry of k-patches. Periodica Polytechnica Mechanical Engineering, [S. l.], v. 45, n. 2, p. 121–134, 2001. Disponível em: https://pp.bme.hu/me/article/view/1415. Acesso em: 15 apr. 2025.