1. Dubinin V.N., “Sharp inequalities for rational functions on a circle,” Math. Notes, vol. 110, no. 1, 41–47 (2021).
2. Gardner R.B., Govil N.K., and Milovanović G.V., Extremal Problems and Inequalities of Markov-Bernstein Type for Algebraic Polynomials, Elsevier and Academic, London (2022).
3. Kalmykov S.I., “About multipoint distortion theorems for rational functions,” Sib. Math. J., vol. 61, no. 1, 85–94 (2020).
4. Li X., “A comparison inequality for rational functions,” Proc. Amer. Math. Soc., vol. 139, no. 5, 1659–1665 (2011).
5. Milovanović G.V., Mitrinović D.S., and Rassias Th.M., Topics in Polynomials: Extremal Problems, Inequalities, Zeros, World Sci., Singapore (1994).