BELAÏDI , B.; LASSAL , Y. Complex Linear Differential Equations with Analytic Coefficients of Iterated Order in the Annulus. Jordan Journal of Mathematics and Statistics, [S. l.], v. 15, n. 3, p. 417–434, 2023. DOI: 10.47013/15.3.3. Disponível em: https://jjms.yu.edu.jo/index.php/jjms/article/view/5. Acesso em: 18 sep. 2024.