1.
Al-Btoush R, Nizar Kh.Kh. A-O. APPROXIMATION OF CONTIONUOUS FUNCTIONS BY VALLEE-POUSSIN’S SUMS. IJPAM [Internet]. 2017 Jan. 31 [cited 2026 Sep. 16];37:541-52. Available from: https://journals.uniurb.it/index.php/ijpam/article/view/6680