STANZHITSKII, A. N.; TKACHUK, A. M. On the Relationship between Properties of Solutions of Difference Equations and the Corresponding Differential Equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 57, n. 7, p. 989–996, 2005. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3657. Acesso em: 5 dec. 2025.