HERRMANN, Peter; HESHMATI, Almas; TAUSCH, Arno; BAJALAN, Chemen S.J. Efficiency and Effectiveness of Social Spending. Wirtschaft und Gesellschaft, Wien, Österreich, v. 35, n. 1, p. 13–43, 2009. Disponível em: https://journals.akwien.at/index.php/wug/article/view/794.. Acesso em: 23 mar. 2026.