Podvysotskaya, A.I. (2009) “Lower bound in the Bernstein inequality for the first derivative of algebraic polynomials”, Ukrains’kyi Matematychnyi Zhurnal, 61(5), pp. 711–715. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3053 (Accessed: 5 December 2025).