H. Möller, “The Laguerre-and-sums-of-powers algorithm for the efficient and reliable approximation of all polynomial roots”, Probl. Peredachi Inf., 51:4 (2015), 60–70; Problems Inform. Transmission, 51:4 (2015), 361–370
H. Möller, “An Efficient Reliable Algorithm for the Approximation of All Polynomial Roots Based on the Method of D. Bernoulli”, Sovrem. Probl. Mat., 16 (2012), 52–65; Proc. Steklov Inst. Math., 280, suppl. 2 (2013), S43–S55