https://wiiw.ac.at/cefta-trade-and-growth-patterns-fifteen-years-since-establishment-dlp-6508.pdf
https://ecipe.org/wp-content/uploads/2022/05/ECI_22_PolicyBrief_GVC2_06_2022_LY04.pdf
https://trade.ec.europa.eu/doclib/docs/2021/september/tradoc_159803.pdf
https://www.europarl.europa.eu/meetdocs/2009_2014/documents/deea/dv/2203_07/2203_07en.pdf