MAKAROV, V. Yu. Relationship between the asymptotic behavior of exponents of a multidimensional exponential series and the asymptotic behavior of its coefficients in a neighborhood of singular points. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 9, p. 1193–1200, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4715. Acesso em: 5 dec. 2025.