ONUKOGU, Ike Basil. Analysis of nonlinear regression models with cubic spline functions: a systematic approach. Statistica, [S. l.], v. 46, n. 1, p. 83–91, 1986. DOI: 10.6092/issn.1973-2201/705. Disponível em: https://rivista-statistica.unibo.it/article/view/705. Acesso em: 23 nov. 2024.