http://wir2018.wid.world/files/download/wir2018-summary-spanish.pdf
https://www.conservativehome.com/thecolumnists/2021/11/daniel-hannan-proposals-to-restrict-mps-outside-work-run-up-against-the-same-problem-what-are-good-and-bad-jobs.html
https://esharp.eu/opinion/flexibility-is-not-the-miracle-solution
https://www.opendemocracy.net/uk/adam-ramsay/so-who-are-dup?utm_source=Daily+Newsletter&utm_campaign=646fb696e5-DAILY_NEWSLETTER_MAILCHIMP&utm_medium=email&utm_term=0_717bc5d86d-646fb696e5-407405485