KUMAR MOHANTA, Sushanta. Common Fixed Point Results in C∗-Algebra Valued b-Metric Spaces Via Digraphs. CUBO, A Mathematical Journal, [S. l.], v. 20, n. 1, p. 41–64, 2018. DOI: 10.4067/S0719-06462018000100041. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/1898. Acesso em: 12 oct. 2025.