Halushchak, S.I. “Spectra of Some Algebras of Entire Functions of Bounded Type, Generated by a Sequence of Polynomials”. Carpathian Mathematical Publications 11, no. 2 (December 31, 2019): 311–320. Accessed November 22, 2024. https://vps.pnu.edu.ua/index.php/cmp/article/view/2110.