AGRANOVICH, P. Existence of a holomorphic function with given indicator in the described variable. Математическая физика, анализ, геометрия, Харків, Україна, v. 8, n. 4, p. 351–365, 2001. Disponível em: http://mag.ilt.kharkiv.ua/index.php/mag/article/view/m08-0351e. Acesso em: 22 чер. 2024.