https://wiiw.ac.at/economic-forecast-for-eastern-europe-the-worst-is-yet-to-come-n-570.html
http://invs.santepubliquefrance.fr/publications/etat_sante_2017/ESP2017_Ouvrage_complet_vdef.pdf
https://scholar.harvard.edu/files/rogoff/files/nber26760_why_is_euro_punching_below_its_weight.pdf
https://www.ecb.europa.eu/press/key/date/2012/html/sp120726.en.html