VYNNYTS’KYI, B. V.; SHARAN, V.L. On zeros of functions of given proximate formal order analytic in a half-plane. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 7, p. 904–909, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4679. Acesso em: 27 apr. 2025.