Nikolov, G. (2013) “ON TURAN’S INEQUALITY FOR ULTRASPHERICAL POLYNOMIALS”,
Ann. Sofia Univ. Fac. Math. and Inf
, 101, pp. 105–114. Available at: https://stipendii.uni-sofia.bg/index.php/fmi/article/view/233 (Accessed: 9 April 2025).