1. Beck, B.: Sur les équations polynomiales dans les quaternions. Enseign. Math. 25, 193–201 (1979)
2. Dočev, K.: A variant of Newton’s method for the simultaneous approximation of all roots of an algebraic equation. Fiz. Mat. Spis. Bŭlgar. Akad. Nauk. 5(38), 136–139 (1962)
3. Durand, É.: Solutions Numériques des Equations Algébriques. Tome I: Equations du type F(x); Racines d’un Polynôme. Masson et Cie (1960)
4. Falcão, M.I., Miranda, F., Severino, R., Soares, M.J.: Evaluation schemes in the ring of quaternionic polynomials. BIT Numer. Math. 58(1), 51–72 (2018)
5. Falcão, M.I., Miranda, F., Severino, R., Soares, M.J.: Weierstrass method for quaternionic polynomial root-finding. Math. Methods Appl. Sci. 41(1), 423–437 (2018)