SLYUSARCHUK, V. Yu. Linear differential-functional equations with absolutely unstable solutions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 11, p. 1570–1578, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1536. Acesso em: 5 dec. 2025.