Acu, Ana Maria, and Daniel Florin Sofonea. “Approximation Properties of Bivariate Extension of Q-Stancu-Kantorovich Operators”. Journal of Advances in Applied & Computational Mathematics 2, no. 1 (April 2, 2015): 13–18. Accessed July 13, 2025. https://ijaet-journal.org/index.php/jaacm/article/view/196.