KITAHARA, S.; TAKAHASHI, W. Image recovery by convex combinations of sunny nonexpansive retractions. Topological Methods in Nonlinear Analysis, [S. l.], v. 2, n. 2, p. 333–342, 1993. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1993.046. Acesso em: 22 lip. 2024.