https://www.opendemocracy.net/can-europe-make-it/manuel-nunes-ramires-serrano-g-rald-sousa-mendes/save-jews-portugal-holocaust?utm_source=Daily+Newsletter&utm_campaign=5f79e9b376-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-5f79e9b376-407405485
https://d3n8a8pro7vhmx.cloudfront.net/campaigncountdown/pages/1052/attachments/original/1512946196/Future_of_Work_Commission_Report__December_2017.pdf?1512946196
https://blogs.lse.ac.uk/europpblog/2023/06/19/is-differentiated-cooperation-the-way-forward-for-eu-foreign-policy/