Vasylyshyn, T.V. “Symmetric Functions on Spaces $\ell_p(\mathbb{{R}}^n)$ and $\ell_p(\mathbb{{C}}^n)$”. Carpathian Mathematical Publications 12, no. 1 (June 12, 2020): 5-16. Accessed September 18, 2020. https://journals.pnu.edu.ua/index.php/cmp/article/view/3863.