CHEN, Xiaoci; TAN, Zhanglu; LI, Siwen. Study on the characteristics of international coal trade on complex network. Journal of Business Economics and Management, [S. l.], v. 23, n. 4, p. 797–817, 2022. DOI: 10.3846/jbem.2022.15670. Disponível em: https://journals.vilniustech.lt/index.php/JBEM/article/view/15670. Acesso em: 19 may. 2025.