Sintsova Ksenia А., and Nikolay A. Shirokov. “Approximation by Polynomials Composed of Weierstrass Doubly Periodic Functions”. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy 10, no. 1 (March 3, 2023): 61–72. Accessed May 18, 2024. https://math-mech-astr-journal.spbu.ru/article/view/15494.