
https://www.imf.org/external/pubs/ft/fandd/2020/06/long-term-economic-impact-of-pandemics-jorda.htm

https://dgap.org/system/files/article_pdfs/DPC%20-%20fully%20study%202023%20-%20final.pdf

https://www-file.huawei.com/-/media/corp2020/seeds-for-the-future/pdf/competitions/2022/the%20future%20of%20digital%20skills%20in%20spain_en.pdf