https://www.politico.eu/article/shaky-grounds-secret-slipshod-evidence-eu-use-sanction-russia-oligarchs/
https://cdn.ceps.eu/wp-content/uploads/2023/09/2023_17_Potential-Impact-of-Ukrainian-Accession-on-the-EUs-Budget.pdf
https://committees.parliament.uk/publications/41073/documents/200048/default/