Koclęga-KulpaBarbara, and Tomasz Szostok. “On a Functional Equation Connected to Gauss Quadrature Rule”. Annales Mathematicae Silesianae 22 (September 30, 2008): 27-40. Accessed May 19, 2024. https://www.journals.us.edu.pl/index.php/AMSIL/article/view/14049.