VLASENKO, L. A. On the Construction and Growth of Solutions of Degenerate Functional Differential Equations of Neutral Type. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 11, p. 1443–1451, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4183. Acesso em: 6 dec. 2025.