Griffiths, Dai, Daniel Burgos, and Stefania Aceto. “Open Education and Alternative Digital Credentials in Europe”. The International Review of Research in Open and Distributed Learning 25, no. 1 (March 1, 2024): 89–108. Accessed May 8, 2024. https://www.irrodl.org/index.php/irrodl/article/view/7412.