?:citationString
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European Commission, Brussels (2019): Eurobarometer 91.3 (2019). GESIS Data Archive, Cologne. ZA7572 Data file Version 1.0.0, doi:10.4232/1.13372
(en)
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European Commission, Brussels (2019): Eurobarometer 91.3 (2019). GESIS Datenarchiv, Köln. ZA7572 Datenfile Version 1.0.0, doi:10.4232/1.13372
(de)
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