MAHMOOD, T. Labour Productivity Convergence in 52 Industries: A Panel Data Analysis of Some European Countries. International Journal of Economics and Financial Issues, [S. l.], v. 2, n. 3, p. 320–339, 2012. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/232. Acesso em: 8 dec. 2022.