1. European Commission (2022, October 01). Recommendation of the European Parliament and the Council of 18 December 2006 on Key Competences for Lifelong Learning, Available online: http://data.europa.eu/eli/reco/2006/962/oj.
2. UNESCO (2014). Preparing Learners for the Challenges of the 21st Century, UNESCO. Available online: https://unesdoc.unesco.org/ark:/48223/pf0000227729.
3. Burns, T., and Gottschalk, F. (2019). Educating 21st Century Children: Emotional Well-Being in the Digital Age, Educational Research and Innovation, OECD Publishing.
4. EUROSTAT (2022, October 10). Foreign Language Learning Statistics, Available online: https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Foreign_language_learning_statistics.
5. European Commission (2022, October 01). Digital Education Action Plan 2021–2027, Available online: https://education.ec.europa.eu/focus-topics/digital/education-action-plan.