MĂRGINEAN, Silvia; TOMA, Ramona. Some issues concerning sector concentration. Evidence from Romania. Journal of Business Economics and Management, [S. l.], v. 12, n. 1, p. 110–130, 2011. DOI: 10.3846/16111699.2011.555378. Disponível em: https://mla.vilniustech.lt/index.php/JBEM/article/view/4991. Acesso em: 23 aug. 2025.