Investigating Export Market Concentration for Developed, Developing and Transition Countries. Vallis Aurea, [S. l.], v. 4, n. 1, p. 6–28, 2018. DOI: 10.2507/IJVA.4.1.1.43. Disponível em: https://ojs.srce.hr/index.php/vallisaurea/article/view/26435. Acesso em: 19 aug. 2025.