WU, Zikun. Executive Overseas Background, Customer Concentration, and Firm Internationalization: Evidence from Structural Changes Around 2018. Financial Economics Research, [S. l.], v. 3, n. 4, p. 61–66, 2026. DOI: 10.70267/fer.v3n4.6166. Disponível em: https://journals.zeuspress.org/index.php/FER/article/view/1356. Acesso em: 19 sep. 2026.