Nisar, K.S., V. Sharma, and A. Khan. “On King Type Modification of $(p,q)$-Lupaş Bernstein Operators With Improved Estimates”. Carpathian Mathematical Publications 15, no. 1 (April 6, 2023): 20–30. Accessed May 12, 2024. https://journals.pnu.edu.ua/index.php/cmp/article/view/5007.