https://s3.amazonaws.com/happiness-report/2019/WHR19.pdf
https://www.esri.ie/system/files/publications/SUSTAT119.pdf
https://www.transparency.de/fileadmin/Redaktion/Publikationen/2019/19-09-01_TI-D_Gutachten_Momsen.pdf
https://www.ips-journal.eu/topics/democracy-and-society/how-russian-life-imitates-dystopian-art-7106/