
https://ep00.epimg.net/descargables/2017/09/19/0b14b7de46915e02949a38f24bb3daf4.pdf

http://www.europarl.europa.eu/sides/getDoc.do?pubRef=-%2f%2fEP%2f%2fNONSGML%2bCOMPARL%2bPE-627.625%2b01%2bDOC%2bPDF%2bV0%2f%2fEN

https://www.weforum.org/stories/2024/07/the-future-of-critical-raw-materials-how-ukraine-plays-a-strategic-role-in-global-supply-chains/