http://upceo.ceo.gencat.cat/wsceop/6508/Resumen%20en%20espa%C3%B1ol%20-874.pdf
http://www.europarl.europa.eu/sides/getDoc.do?pubRef=-%2F%2FEP%2F%2FNONSGML%2BCOMPARL%2BPE-602.995%2B01%2BDOC%2BPDF%2BV0%2F%2FEN
https://www.socialeurope.eu/orban-ethnonationalism-and-xenophobia
https://www.ifri.org/fr/espace-media/lifri-medias/concept-de-souverainete-economique-industrielle-de-leurope-progressivement