Argyros, Ioannis K., and Saïd Hilout. “On Newton’s Method Using Recurrent Functions under Hypotheses up to the Second Fréchet Derivative”. Rev. Anal. Numér. Théor. Approx., vol. 41, no. 2, Aug. 2012, pp. 99-113, https://doi.org/10.33993/jnaat412-972.