Palomba, Giuseppe, and Enrico Elefante. “Digital Validation of Skills in Non-Formal Learning in Europe”. Community Notebook. People, Education and Welfare in the Society 5.0 1, no. 1 (April 1, 2026): 143–169. Accessed July 6, 2026. https://www.quadernidicomunita.it/index.php/qdc/article/view/406.