BANAKH, T.; KUBIŚ, W.; NOVOSAD, N.; NOWAK, M.; STROBIN, F. Contractive function systems, their attractors and metrization. Topological Methods in Nonlinear Analysis, [S. l.], v. 46, n. 2, p. 1029–1066, 2015. DOI: 10.12775/TMNA.2015.076. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2015.076. Acesso em: 1 apr. 2023.