ISUFATI, A. Rational Contractions in b-Metric Spaces. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 5, n. 3, p. 803–811, 2014. DOI: 10.24297/jam.v5i3.3696. Disponível em: https://rajpub.com/index.php/jam/article/view/3696. Acesso em: 22 jul. 2024.