
https://wiiw.ac.at/different-choices-divergent-paths-poland-and-ukraine-dlp-6419.pdf

https://www.atlanticcouncil.org/news/transcripts/transcript-us-treasury-secretary-janet-yellen-on-the-next-steps-for-russia-sanctions-and-friend-shoring-supply-chains/

https://www.nao.org.uk/wp-content/uploads/2017/07/The-Customs-Declaration-Service.pdf