Cătinaş, E., and I. Păvăloiu. “On a Third Order Iterative Method for Solving Polynomial Operator Equations”. Rev. Anal. Numér. ThéOr. Approx., vol. 31, no. 1, Feb. 2002, pp. 21-28, https://ictp.acad.ro/jnaat/journal/article/view/2002-vol31-no1-art4.