https://www.socialeurope.eu/strong-euro-stay
http://ec.europa.eu/epsc/sites/epsc/files/epsc_europe_is_back_trends_jan.pdf
https://wiiw.ac.at/alternatives-in-the-design-of-sovereign-green-bonds-dlp-6412.pdf
http://www.cadtm.org/IMG/pdf/Alexander_Sack_DETTE_ODIEUSE.pdf