Nic Newman, Richard Fletcher, Craig T. Robertson, Kirsten Eddy, Rasmus Kleis Nielsen: Reuters Institute – Digital News Report 2022. Hrsg.: Reuters Institute for the Study of Journalism, University of Oxford. Oxford 22. Juni 2022, 3.02 Austria, 3.10 Germany, 2.23 Switzerland, S.11ff., 64f., 80f., 106f. (englisch, 164 S., reutersinstitute.politics.ox.ac.uk [PDF; 8,7MB; abgerufen am 28. Januar 2023] Umfrage durch YouGov): “Q3. Which, if any, of the following have you used in the last week as a source of news?”