LIU, X.; LI, . H.; HU, X. An Analysis Method of Black Swan Event based on Impact-spread Tree. Journal of Risk Analysis and Crisis Response, [S. l.], v. 10, n. 2, 2021. Disponível em: https://jracr.com/index.php/jracr/article/view/121. Acesso em: 5 may. 2024.