Alvarez-Sousa, Antonio. « The Influence of the Crisis on the Pillars of the Welfare State. The opinion of EU citizens ». Revista de Cercetare si Interventie Sociala, vol. 49, juin 2015, p. 5-22, https://www.rcis.ro/journal/article/view/2167-the-influence-of-the-crisis-on-the-pillars-of-the-welfare.