
https://www.nuffieldtrust.org.uk/files/2020-03/achieving-scale-and-spread-report-final.pdf

https://www.ipsos.com/sites/default/files/ct/publication/documents/2019-01/ipsos_views_in_media_we_trust_web.pdf

https://www.censis.it/sites/default/files/downloads/La%20societaitaliana_2021.pdf