ANDRES, Jan; GÓRNIEWICZ, Lech; JEZIERSKI, Jerzy. Relative versions of the multivalued Lefschetz and Nielsen theorems and their application to admissible semi-flows. Topological Methods in Nonlinear Analysis, [S. l.], v. 16, n. 1, p. 73–92, 2000. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2000.031. Acesso em: 8 jul. 2025.