Normative positions towards COVID-19 contact-tracing apps: findings from a large-scale qualitative study in nine European countries
Lucivero F., Marelli L., Hangel N., Zimmermann BM., Prainsack B., Galasso I., Horn R., Kieslich K., Lanzing M., Lievevrouw E., Ongolly F., Samuel G., Sharon T., Siffels L., Stendahl E., Van Hoyweghen I.