SELLAPPAN, K. . Zero-Downtime Modernization of Financial Clearing Engines: A Systematic Review. NOLEGEIN- Journal of Information Technology & Management, [S. l.], v. 9, n. 2, p. 28–43, 2026. DOI: 10.37591/njitm.v9i2.1899. Disponível em: https://mbajournals.in/index.php/JoITM/article/view/1899. Acesso em: 3 jul. 2026.