
https://www.greens-efa.eu/en/article/press/austrian-government-rejects-eu-mercosur-agreement/

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

https://wiiw.ac.at/implications-of-china-s-growing-geo-economic-influence-for-the-eu-addressing-critical-dependencies-in-the-green-transition-dlp-6501.pdf