Margiotta, Umberto, Rita Minello, and Maria Tomarchio. “Twenty Years After the Delors Report Models, Principles, and Strategies of Educational Research for 21st Century Schools”. Formazione & insegnamento 15, no. 2 Suppl. (August 31, 2017): 9–12. Accessed July 22, 2024. https://ojs.pensamultimedia.it/index.php/siref/article/view/2576.