KHATS’, R. V. Regularity of growth of fourier coefficients of entire functions of improved regular growth. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 12, p. 1717–1721, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2837. Acesso em: 5 dec. 2025.