A. I. Popescu, « Lifelong Learning in the Knowledge Economy: Considerations on the Lifelong Learning System in Romania from a European Perspective », rcis, vol. 37, p. 49–76, juin 2012, Consulté le: nov. 07, 2026. Disponible sur: https://www.rcis.ro/journal/article/view/421-lifelong-learning-in-the-knowledge-economy-considerations