Poghosyan, Arnak, Lusine Poghosyan, and Rafayel Barkhudaryan. “On Some Quasi-Periodic Approximations”. Armenian Journal of Mathematics 12, no. 10 (October 30, 2020): 1–27. Accessed April 3, 2025. https://armjmath.sci.am/index.php/ajm/article/view/460.