OKOR, T.; NWACHUKWU, G. C. Generalized Cash-type Second Derivative Extended Backward Differentiation Formulas for Stiff systems of ODEs: Extended backward differentiation. Journal of the Nigerian Mathematical Society, [S. l.], v. 41, n. 2, p. 163–191, 2022. Disponível em: https://ojs.ictp.it/jnms/index.php/jnms/article/view/810. Acesso em: 3 dec. 2022.