https://freedomhouse.org/sites/default/files/2020-04/05062020_FH_NIT2020_vfinal.pdf
https://www.europarl.europa.eu/doceo/document/PEGA-PR-738492_EN.pdf
https://ukandeu.ac.uk/who-controls-public-policy-paul-cairney/?mc_cid=cd66156d9a&mc_eid=815b1928ec
http://visionofhumanity.org/app/uploads/2017/06/GPI-2017-Report-1.pdf