Popescu, Alina Irina. « Lifelong Learning in the Knowledge Economy: Considerations on the Lifelong Learning System in Romania from a European Perspective ». Revista de Cercetare si Interventie Sociala, vol. 37, juin 2012, p. 49-76, https://www.rcis.ro/journal/article/view/421-lifelong-learning-in-the-knowledge-economy-considerations.