https://www.progressivepolicy.org/blogs/ppis-trade-fact-of-the-week-world-patenting-has-quadrupled-since-the-conclusion-of-the-wtos-trips-agreement/
https://en.euractiv.eu/wp-content/uploads/sites/2/special-report/EURACTIV-Special-Report-European-gas-markets.pdf
https://www.etui.org/content/download/37519/376359/file/19+Towards+a+just+transition+Galgo%CC%81czi+EN+Web+version.pdf