LOPE, J. E. C.; REY, R. M. .; ROQUE, M. .; SY, P. W. . Approximate fixed points on almost convex sets. Tamkang Journal of Mathematics, [S. l.], v. 35, n. 3, p. 255–260, 2004. DOI: 10.5556/j.tkjm.35.2004.206. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/206. Acesso em: 25 apr. 2024.