https://www.socialeurope.eu/sps-snatching-renewal-jaws-defeat
https://www.linkiesta.it/2022/08/sandro-gozi-intervista-renew-italia/
https://www.brookings.edu/wp-content/uploads/2018/03/fp_20180316_future_political_warfare.pdf
http://www.progressives-zentrum.org/wp-content/uploads/2018/10/Les-Oubliés-Entretiens-sur-les-terres-où-prospère-le-vote-extrême_Das-Progressive-Zentrum_Johannes-Hillje.pdf