Gadjev, Ivan, and Parvan E. Parvanov. “WEIGHTED APPROXIMATION IN UNIFORM NORM BY MEYER-K¨ONIG AND ZELLER OPERATORS”. Ann. Sofia Univ. Fac. Math. and Inf. 104 (December 12, 2017): 77–87. Accessed December 4, 2024. https://ftl5.uni-sofia.bg/index.php/fmi/article/view/38.