NASHINE, H. K. Invariant approximations, generalized I-non- expansive mappings and non-convex domain. Tamkang Journal of Mathematics, [S. l.], v. 39, n. 1, p. 53–62, 2008. DOI: 10.5556/j.tkjm.39.2008.45. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/45. Acesso em: 26 apr. 2024.