COUCHOURON, Jean-Francois; KAMENSKII, Mikhail I.; MIKHAYLENKO, Boris; NISTRI, Paolo. Periodic bifurcation problems for fully nonlinear neutral functional differential equations via an integral operator approach: the multidimensional degeneration case. Topological Methods in Nonlinear Analysis, [S. l.], v. 46, n. 2, p. 631–664, 2015. DOI: 10.12775/TMNA.2015.062. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2015.062. Acesso em: 3 jul. 2025.