MARTINS, A. P. Union duopoly with homogeneous labor: The effect of membership and employment constraints. Journal of Economics Bibliography, [S. l.], v. 7, n. 3, p. 127–162, 2020. Disponível em: https://journals.econsciences.com/index.php/JEB/article/view/2112. Acesso em: 30 jan. 2026.