https://www.project-syndicate.org/commentary/putin-trump-g20-meeting-by-nina-l–khrushcheva-2017-07
https://www.socialeurope.eu/work-family-fatherland-populist-social-policies-in-central-and-eastern-europe
https://www.iidh.ed.cr/derecho-informacion/media/1079/acuerdoescazu.pdf
https://www.swp-berlin.org/en/publication/labiles-frankreich-auswirkungen-der-vorgezogenen-parlamentswahlen