VASYLYK, V. B.; MAKAROV, V. L. Exponentially Convergent Method for the First-Order Differential Equation in a Banach Space with Integral Nonlocal Condition. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 8, p. 1029–1040, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2197. Acesso em: 5 dec. 2025.