GAO, Zixuan. Research on Default Risk of Urban Investment Bonds Based on Multi-factor Model and KMV Model: Take Shanghai as an example. Frontiers in Business, Economics and Management, [S. l.], v. 17, n. 2, p. 450–454, 2024. DOI: 10.54097/py9e9n85. Disponível em: https://drpress.org/ojs/index.php/fbem/article/view/27778. Acesso em: 13 aug. 2026.