
https://ecipe.org/wp-content/uploads/2022/05/ECI_22_PolicyBrief_GVC2_06_2022_LY04.pdf

http://www.guengl.eu/uploads/news-documents/Working_paper_Border_controls_on_cross_border_trade_in_goods.pdf

https://blogs.lse.ac.uk/europpblog/2023/03/13/what-impact-have-eu-sanctions-had-on-the-russian-economy/