1. European Disunion
2. Bundesverfassungsgericht. (2009)“Lisbon” Decision.
3. European Commission.(2019)Standard Eurobarometer 91.
4. European Commission. (2022)Standard Eurobaromter 97.
5. Financial Times Covid Tracker(2023).https://www.ft.com/content/a2901ce8-5eb7-4633-b89c-cbdf5b386938[Accessed March 2023].