?:citationString
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European Commission, Brussels (2015): Eurobarometer 78.1 (2012). GESIS Data Archive, Cologne. ZA5685 Data file Version 2.0.0, doi:10.4232/1.12061
(en)
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European Commission, Brussels (2015): Eurobarometer 78.1 (2012). GESIS Datenarchiv, Köln. ZA5685 Datenfile Version 2.0.0, doi:10.4232/1.12061
(de)
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