NABIL, T.; SOLIMAN, A. H. On Ray’s theorem for weak firmly nonexpansive mappings in Hilbert Spaces. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 12, n. 1, p. 5858–5861, 2016. DOI: 10.24297/jam.v12i1.610. Disponível em: https://rajpub.com/index.php/jam/article/view/610. Acesso em: 16 may. 2024.