https://www.ipg-journal.de/interviews/artikel/das-vertrauen-vollstaendig-verloren-2934/
https://www.socialeurope.eu/2017/07/european-safe-bond-handle-care/
https://blogs.lse.ac.uk/europpblog/2022/08/17/threats-and-solidarity-in-the-eurozone-how-italian-and-german-citizens-respond-to-information-about-italexit/